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[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

Cummins Westport ISB6.7 G midrange natural gas engine now in full production

December 09, 2016

Cummins Westport’s ISB6.7 G, a 6.7 liter midrange, factory-built natural gas engine is now fully available as a production engine for shuttle bus, medium duty truck, and vocational applications in North America. (Earlier post.) As previously announced, the engine has been available for school bus applications since May 2016 from Thomas Built Buses. The 6.7 liter engine platform has large OEM availability for midrange trucks, vocational trucks and mid size buses and the expansion of applications potentially available for the ISB6.7 G engine more than doubles its addressable market.

The ISB6.7 G is based on the Cummins ISB6.7 diesel engine platform, the industry leader in the Cummins midrange engine family, and operates exclusively on natural gas, including compressed, liquid, or renewable natural gas (RNG). The ISB6.7 G is the second engine from Cummins Westport (CWI) to receive emission certification from the US Environmental Protection Agency (EPA) and the Air Resources Board (ARB) in California for meeting the Optional Low NOx Emissions standards.

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Global Automakers calls on EPA to withdraw proposed determination on MY 2022-2025 GHG standards, get back in alignment with NHTSA, provide more time

December 08, 2016

Global Automakers, the trade association representing the US divisions of 12 international automakers (Aston Martin, Ferrari, Honda, Hyundai, Isuzu, Kia, Maserati, McLaren, Nissan, Subaru, Suzuki and Toyota), has called on the EPA either to withdraw its proposed determination on MY 2022-2025 light duty vehicle greenhouse gas standards or to extend the comment period. On 30 November, EPA proposed leaving the greenhouse gas (GHG) emissions standards for those model years in place, based on its technical analysis that shows automakers are well positioned to meet the targets, and proposed a 30-day comment period. (Earlier post.)

The final standards are projected to result in an average industry fleet-wide level of 163 grams/mile of CO2 in model year 2025, which is equivalent to 54.5 mpg (4.31 l/100 km), if achieved exclusively through fuel economy improvements.

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CNG Fuels launches renewable biomethane in UK; heavy-duty fleet operators committing to use

December 04, 2016

In the UK, CNG Fuels launched its renewable biomethane fuel, the most cost-effective and lowest-carbon alternative to diesel for heavy goods vehicles (HGVs). The fuel is 35%-40% cheaper than diesel, and emits 70% less CO2 on a well-to-wheel basis. It therefore offers fleet operators the chance to significantly reduce running costs and emissions. Retailers Waitrose, John Lewis and Argos, as well as hauler Brit European, have already committed to using the new biomethane fuel for their long-distance articulated trucks.

CNG Fuels is the UK’s leading supplier of CNG (compressed natural gas) fuel, and it is now sourcing its entire supply from biomethane. The biomethane is made from the gas harvested through the processing of waste generated by food production, which is then injected directly into gas pipelines. The gas is subsequently compressed at CNG Fuels’ own high-capacity refueling stations in Leyland (Lancashire) and Crewe (Cheshire).

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California ARB releases discussion draft of plan to cut GHG by 40% by 2030

December 02, 2016

The California Air Resources Board (CARB) released its initial draft plan to reduce greenhouse gas emissions by 40% below 1990 levels by 2030—the most ambitious target in North America. The 2030 Target Scoping Plan Discussion Draft builds on the state’s efforts to reach its more immediate goal of reducing greenhouse gas emissions to 1990 levels by 2020 and outlines the most effective ways to reach the new 2030 goal, including continuing California’s Cap-and-Trade program.

In his January 2015 inaugural address, California Governor Jerry Brown identified five key climate change strategy “pillars,” which recognize that several major areas of the California economy will need to reduce their emissions to meet California’s ambitious climate change goals. These five pillars are:

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US FTA to award up to $2.75M for zero-emissions public transportation tech

December 01, 2016

The Federal Transit Administration (FTA) announced the availability of $2.75 million of funding for its Zero Emission Research Opportunity (ZERO) (FTA-2017-001-TRI). The ZERO program is to facilitate the advancement, production, and deployment of zero-emission public transportation vehicle technology and related infrastructure.

FTA intends to select, and enter into cooperative agreements with, multiple (up to three) nonprofit consortia to build on past research innovation and development efforts to facilitate the deployment of zero-emission vehicles and associated advanced technology. Eligibility for future ZERO funding opportunities in fiscal years 2017-2020 will be limited to those nonprofit consortia selected under this fiscal year 2017 notice.

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EPA proposes leaving light-duty vehicle GHG standards for MY 2022-2025 unchanged

November 30, 2016

The US Environmental Protection Agency (EPA) has proposed leaving the greenhouse gas (GHG) emissions standards for light-duty vehicle model years 2022-2025 in place, based on its technical analysis that shows automakers are well positioned to meet the targets. The final standards are projected result in an average industry fleet-wide level of 163 grams/mile of CO2 in model year 2025, which is equivalent to 54.5 mpg (4.31 l/100 km), if achieved exclusively through fuel economy improvements.

As part of the rulemaking establishing the model year 2017-2025 light-duty vehicle GHG standards, EPA committed to conduct a Midterm Evaluation of standards for model years 2022-2025. The public comment period for this action begins today and will end on 30 December 2016. After the comment period has ended and consideration of the input, the Administrator will decide whether she has enough information to make a final determination on the model year 2022-2025 standards.

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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

November 29, 2016

The California Air Resources Board (CARB) has posted a revised draft of California’s proposed Short-Lived Climate Pollutant (SLCP) Strategy. SLCPs are a category of pollutants which remain in the atmosphere for a relatively brief period, but have global warming potentials that are much higher than those of CO2. SLCPs may account for an estimated 40% of global warming, increasing the impacts of climate change.

SLCPs include black carbon (soot), methane and hydrofluorocarbons (HFCs)—the fastest-growing source of GHG emissions in California and globally—which are used as refrigerants, aerosol propellants and insulation.

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Update on DOE Co-Optima project to co-optimize fuels & engines; goal of 30% per vehicle reduction in petroleum

November 28, 2016

In October 2015, the US Department of Energy’s (DOE) launched a broad, joint effort to co-optimize the development of efficient engines and low greenhouse-gas fuels for on-road vehicles with the goal of reducing petroleum consumption by 30% by 2030 beyond what is already targeted. (Earlier post.) The intended application is light-, medium-, and heavy-duty markets including hybrid architectures.

The Co-Optima project team, which is leveraging the technical contributions of nine of DOE’s 17 national laboratories, has grown to more than 130 researchers, according to Robert Wagner, Director of the Fuels, Engines, and Emissions Research Center at Oak Ridge National Laboratory (ORNL), and a member of the Co-Optima leadership team, in a briefing at the lab earlier this month. In August 2016, DOE announced funding of up to $7 million further to support the initiative.

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Government of Canada to work with provinces, territories, and stakeholders to develop a clean fuel standard

November 26, 2016

The Government of Canada will consult with provinces and territories, Indigenous peoples, industries, and non-governmental organizations to develop a clean fuel standard. The standard would require reductions in the carbon footprint of the fuels supplied in Canada, based on lifecycle analysis. The overall objective of a clean fuel standard would be to achieve annual reductions of 30 megatonnes (Mt) of GHG emissions by 2030.

The approach would not differentiate between crude-oil types produced in or imported into Canada. These consultations would inform the development of a regulatory approach under the Canadian Environmental Protection Act (CEPA).

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BMW, Dürr, BASF integrated paint process cuts 12 kt CO2 annually

November 23, 2016

The BMW Group saves 12,000 tons of CO2 annually during automotive production at its Munich plant by eliminating one step from the paint process. In other words, compared to a conventionally coated vehicle, a car coated with the shortened process can drive the first 420 kilometers with a net zero carbon footprint. In addition, the process saves as much energy as the amount needed by 250,000 Munich residents to wash one load of laundry every week.

These are the findings of a new TÜV-certified study conducted by the BMW Group together with the mechanical and plant engineering firm Dürr and BASF’s coatings experts.

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Big Blue Bus receives nearly $900K to purchase 58 new Cummins-Westport Near-Zero NOx engines

November 22, 2016

In California, Big Blue Bus (BBB) will receive $870,000 from the Mobile Source Air Pollution Reduction Review Committee’s (MSRC) Near Zero Engine Incentive Program. Big Blue Bus will use the grant approved by the MSRC partially to fund the purchase of 58 new Cummins-Westport 8.9L ISL G Near-Zero (NZ) 0.02 NOx engines. The NZ engine is the first mid-range engine in North America to receive emission certifications from both the US Environmental Protection Agency (EPA) and California Air Resources Board (ARB) meeting the 0.02 g/bhp-hr optional Near Zero NOx Emissions standards. (Earlier post.)

The new engines will be installed over a period of 3 to 4 years, at a rate of 12 to 18 buses per year.

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S. Korean researchers develop new catalytic pathway for direct conversion of CO2 to liquid hydrocarbon fuels

November 21, 2016

A team led by Professor Jae Sung Lee at Ulsan National Institute of Science and Technology (UNIST), with colleagues at Pohang University of Science and Technology (POSTECH), have developed a new pathway for the direct conversion of CO2 to liquid transportation fuels by reaction with renewable hydrogen produced by solar water splitting.

The new carbon capture and utilization (CCU) system is enabled by their discovery of a new catalyst that produces liquid hydrocarbon (C5+) selectivity of ∼65% and greatly suppresses CH4 formation to 2–3%. This selectivity is unprecedented for direct catalytic CO2 hydrogenation and is very similar to that of conventional CO-based Fischer-Tropsch (FT) synthesis, the team reports in a paper published in Applied Catalysis B: Environmental.

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DOE to issue $47M FY17 Vehicle Technologies program-wide funding opportunity

November 17, 2016

The US Department of Energy (DOE) will soon issue its FY17 Vehicle Technologies Program Wide Funding Opportunity Announcement (DE-FOA-0001701). The FOA will have estimated funding of $47,150,000; DOE expects to post the full announcement (DE-FOA-0001629) in December.

DOE’s Vehicle Technologies Office supports a broad technology portfolio of advanced highway transportation technologies. Research, development, and deployment efforts are focused on reducing the cost and improving the performance of a mix of near- and long-term vehicle technologies including advanced batteries, power electronics and electric motors, lightweight and propulsion materials, advanced combustion engines, advanced fuels and lubricants, and other enabling technologies. The upcoming FOA may include the following areas of interest (AOI):

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California ARB holding public workshop on how to spend VW’s $800M ZEV payment

November 15, 2016

The California Air Resources Board (ARB) is holding a public workshop on Friday, 2 December 2016, to provide suggestions for Volkswagen’s $800-million 10-year zero emission vehicle (ZEV) Investment Commitment in California.

The ZEV Investment Commitment is a component of California’s partial settlement with VW resulting from VW’s use of illegal defeat devices in 2.0 liter (2.0L) diesel cars that were sold into the State from model years 2009 to 2015. During the workshop, staff will discuss:

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Global Carbon Project: Low growth in global carbon emissions continues for third successive year

November 14, 2016

Global carbon emissions from burning fossil fuels did not grow in 2015 and are projected to rise only slightly in 2016, marking three years of almost no growth, according to researchers at the University of East Anglia (UEA) and the Global Carbon Project. Decreased use of coal in China is the main reason behind the 3-year slowdown.

The projected rise of only 0.2% for 2016 marks a clear break from the rapid emissions growth of 2.3% per year in the decade to 2013, with just 0.7% growth seen in 2014. The new data shows emissions growth remained below 1% despite GDP growth exceeding 3%. Detailed data were made available in the open-access data journal Earth System Science Data (ESSD). This is the fifth update of the global carbon budget published by ESSD in the living data format.

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New statistical method to detect ozone pollution hot spots and monitor instrument failure; combining PCA and MEWMA

November 13, 2016

A new statistical method developed by researchers at KAUST (King Abdullah University of Science and Technology, Saudi Arabia) can detect abnormal ozone levels within large bodies of monitored data. The monitoring methods can quickly and accurately detect ozone anomalies—localized spikes in ozone concentration indicated by sensor data.

The method could be used as an automatic tool, and could act as an early warning system for dangerous pollution levels and potential technical problems, said Assistant Professor Ying Sun from the University’s Computer, Electrical and Mathematical Science and Engineering Division.

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Study finds CO2 emissions trading more effective path to automotive CO2 reduction in Europe than tailpipe standards

November 11, 2016

A new study by researchers at MIT and colleagues in Europe has found that rather than adopting a standard for automotive fuel economy ratings, as the United States has done with its CAFE (corporate average fuel economy) standards for many years, the EU could achieve the same results for CO2 emission reduction at far lower cost to the economy by simply extending their existing emissions-trading system to encompass transportation rather than just electricity generation and energy intensive industry.

The European Union (EU) recently adopted CO2 emissions mandates for new passenger cars, requiring steady reductions to 95 gCO2/km in 2021. Switching from the automotive standards to the trading scheme could save as much as €63 billion, says the study’s lead author Sergey Paltsev, deputy director at MIT’s Joint Program on the Science and Policy of Global Change and senior research scientist at the MIT Energy Initiative. The results are published in the journal Transportation.

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Maersk Line, Ports of LA & Long Beach in 3-year project to measure air pollution benefits from $125M eco-upgrade; real-time tracking 24x7

November 10, 2016

Shipping company Maersk Line and the ports of Los Angeles and Long Beach are partnering to measure the environmental benefits of a $125-million upgrade for 12 Maersk container ships. This will involve the installation of high-tech equipment to track vessel emissions and energy efficiency over the next three years, enabling more transparency and ultimately reducing the environmental impact of vessels calling at the San Pedro Bay port complex.

The two ports are contributing a combined $1 million to real-time tracking systems that represent an industry leading application to pinpoint vessel emissions while ships are at sea and at berth. Unprecedented in its scope and scale, the three-year data collection and analysis project, called “The Connected Vessel Programme”, builds on the $125 million Maersk Line has invested in its “radical retrofit” program to reduce fuel consumption and increase the capacity of the vessels that regularly call at the San Pedro Bay ports.

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Argonne study on optimizing gasoline compression ignition at idle and low loads

November 09, 2016

Gasoline compression ignition—i.e., igniting gasoline purely by compression, as with a diesel, rather by using a spark—is a promising, high-efficiency, low-temperature combustion mode that offers low engine-out NOx and soot. (Earlier post.) GCI, however, is challenged by stable idle- to low-load operation (i.e., 0-2 bar BMEP) because it is challenging to ignite the low-reactivity gasoline purely through compression.

One way to address that challenge is through optimizing the injection system and injection strategy to ensure that the air-fuel mixture maintains a high level of reactivity. A team from Argonne National Laboratory now reports in a paper published in the International Journal of Engine Research on the effects of injector nozzle inclusion angle, injection pressure, boost, and swirl ratio on gasoline compression ignition combustion.

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Study finds pollution emitted near equator has biggest impact on global ozone

Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. Researchers from the University of North Carolina at Chapel Hill, the University of Colorado, Boulder and their colleagues have now shown that this changing global emissions map is creating more total tropospheric ozone worldwide compared to the amount of pollution being emitted, signaling an effect that could be difficult to reign in without strategic policy planning.

In the study, published in Nature Geoscience, the team used a global chemical transport model to simulate changes in tropospheric ozone concentrations from 1980 to 2010, and to separate the influences of changes in the spatial distribution of global anthropogenic emissions of short-lived pollutants, the magnitude of these emissions, and the global atmospheric methane concentration. They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane.

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ORNL-led team developing breakthrough high-temperature, high-strength Al alloy for advanced light-duty engines

November 08, 2016

A team led by researchers from Oak Ridge National Laboratory (ORNL) is developing a lower-cost cast aluminum (Al) alloy capable of at least a 50 ˚C temperature increase over the current cylinder head alloys 319 and 356 for use in light duty engines. The new alloy is also targeting a better than 25% increase in strength at 300 ˚C compared to the older alloys at 250 ˚C, as well as excellent hot tearing resistance.

The work, led by Dr. Amit Shyam at ORNL, is part of a 4-year project consisting of a CRADA partnership with FCA and foundry giant Nemak. (Earlier post.)

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DOE FY17 SBIR Phase I Release 2 topics include fuel cells, EV batteries, engines

The US Department of Energy (DOE) has announced the 2017 Small Business Innovation Research and Small Business Technology Transfer (SBIR/STTR) Phase I Release 2 topics, including three subtopics focused on hydrogen and fuel cell technologies. The fuel cell subtopics include innovative materials for bipolar plates; liquid organic hydrogen carriers; and emergency hydrogen refuelers.

The Phase I Release 2 topics also include four vehicle subtopics, including electric drive vehicle batteries; SiC device qualification for electric drive vehicle power electronics; fuel efficiency improvement technologies for conventional stoichiometric gasoline direct injection multi-cylinder internal combustion engines; and wide-range high-boost turbocharging system. Further, a technology transfer opportunity is the use of a new Argonne catalyst for reducing NOx.

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Oil and Gas Climate Initiative to invest $1B over 10 years in low-emissions tech

November 04, 2016

The Oil and Gas Climate Initiative (OGCI) will invest $1 billion over the next ten years to develop and to accelerate the commercial deployment of innovative low-emissions technologies.

Led by the heads of ten oil and gas companies that aim to lead the industry response to climate change, OGCI member companies—BP, CNPC, Eni, Pemex, Reliance Industries, Repsol, Royal Dutch Shell, Saudi Aramco, Statoil and Total—together represent one fifth of the world’s oil and gas production. The OGCI was established following discussions during the 2014 World Economic Forum Annual Meeting, and was officially launched at the UN Secretary General’s Climate Summit in New York in September 2014.

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Wrightspeed and the Ratto Group introduce range-extended electric refuse truck; 15 trucks over next 12 months

November 02, 2016

Wrightspeed, the leading manufacturer of range-extended electric vehicle (REV) powertrains for heavy-duty applications, and The Ratto Group, a Santa Rosa, California-based refuse, yard waste and recycling collection and processing company, unveiled the first commercial application of a range-extended electric refuse truck. Ratto and Wrightspeed will roll out 15 Route-equipped trucks—retrofits of trucks in Ratto’s fleet—over the next 12 months to meet community needs.

With the support of the Sonoma County Board of Supervisors, communities in Sonoma and surrounding counties will be serviced by a fleet of clean, quiet trucks from The Ratto Group, powered by Wrightspeed’s range-extended powertrain, The Route. (Earlier post.) Designed to deliver economic, environmental and performance benefits in both OEM-installed new vehicles and existing fleet retrofits, The Route is a scalable solution that has been recognized by The State of California for its ability to help meet progressive climate and air quality mandates. Wrightspeed was awarded $7 million in grants by the California Energy Commission to further develop the technology for broad-based adoption.

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UNICEF: 300M children worldwide breathing air exceeding WHO pollution guidelines by 6x or more

October 31, 2016

Almost one in seven of the world’s children, 300 million, live in areas with the most toxic levels of outdoor air pollution—six or more times higher than international guidelines set by the UN’s World Health Organization (WHO)—according to a new UNICEF report.

The report, “Clear the Air for Children”, uses satellite imagery to show that some 2 billion children live in areas where outdoor air pollution, caused by factors such as vehicle emissions, heavy use of fossil fuels, dust and burning of waste, exceeds WHO minimum air quality guidelines. The findings come a week ahead of the COP 22 in Marrakesh, Morocco, where UNICEF is calling on world leaders to take urgent action to cut air pollution in their countries.

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ICCT-led analysis of turbocharged, downsized engine tech finds lower costs and greater benefits than 2012 EPA/NHTSA analysis; 48V, e-boost, Miller

A new white paper published by the International Council on Clean Transportation (ICCT), in collaboration with Eaton, Ricardo, JCI, BorgWarner, Honeywell, and the ITB Group, analyzes current turbocharged, downsized gasoline engine technology developments and trends.

The assessment, which relies on data from publicly available sources and data and information from the participating automotive suppliers, provides an update to the technology assessments performed by US Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA) to inform the 2017–2025 fuel economy and GHG rule.

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JILA team identifies missing piece in how fossil fuel combustion contributes to air pollution

JILA physicists and colleagues have identified a long-missing piece in the puzzle of exactly how fossil fuel combustion contributes to air pollution and a warming climate. Performing chemistry experiments in a new way, they observed a key molecule that appears briefly during a common chemical reaction in the atmosphere. JILA a partnership of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder. Their paper appears in Science.

The reaction combines the hydroxyl molecule (OH, produced by reaction of oxygen and water) and carbon monoxide (CO, a byproduct of incomplete fossil fuel combustion) to form hydrogen (H) and carbon dioxide (CO2).

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Mercedes-Benz powering ahead with €3B strategic engine initiative; increasing electrification, 48V; diesel and gasoline; cylinder deactivation

October 30, 2016

Following the launch of the new Mercedes-Benz four-cylinder OM 654 diesel engine in spring 2016 in the E 220d (earlier post), 2017 will see the addition of four more members to the all-new family of engines: six-cylinder in-line engines in both diesel (OM 656) and gasoline (M 256) versions; a new four-cylinder gasoline engine (M 264); and a new biturbo V8 (M 176) with cylinder deactivation. Mercedes-Benz is investing a total of around €3 billion (US$3.3 billion) in its strategic engine initiative.

The scaling of state-of-the-art technologies and electrification options from 12 V to 48 V to high-voltage plug-in applications makes it possible to configure the appropriate powertrain for every vehicle. There will be world premieres for new advanced technologies, such as the Integrated Starter-Alternator (ISG); the 48 V electrical system; and the electric auxiliary compressor (eZV).

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IMO sets 2020 date for ships to comply with low sulfur fuel oil requirement; 5000 ppm

October 29, 2016

The International Maritime Organization (IMO), the regulatory authority for international shipping, decided to implement a global sulfur cap of 0.50% m/m (mass/mass) (5,000 ppm) on fuel oil starting 1 January 2020 during its Marine Environment Protection Committee (MEPC), meeting for its 70th session in London.

The cap represents a significant cut from the 3.5% m/m (35,000 ppm) global limit currently in place and demonstrates a clear commitment by IMO to ensuring shipping meets its environmental obligations.

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Air purification in parking garages could reduce PM10 by up to half in areas in downtown Eindhoven

October 28, 2016

Eliminating particulate matter (PM10) from underground car parks in the city center of Eindhoven could result in local reductions in the concentration of these particles of up to 50%, according to a study by researchers from Eindhoven University of Technology (TU/e). The team based its fingings on air flow models and computer simulations of the city center.

The simulations, reported in a paper in Journal of Wind Engineering and Industrial Aerodynamics, suggest the potential effectiveness of an initiative by the environmental innovation company ENS Technology to use underground car parks as air purification sites, or “lungs of the city”.

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Lung Association report highlights health and climate costs of petroleum-based transportation and the benefits of shifting to ZEVs

October 27, 2016

A new report produced by the American Lung Association concludes that over-reliance on petroleum-based fuels for transportation costs the 10 ZEV states in the US (California and nine other states that have adopted the California Zero Emission Vehicle (ZEV) program) an estimated $37 billion in health expenses and climate costs every year—with California costs alone hitting $15 billion.

Of that $37 billion, health costs added up to $24 billion in 2015; the $24 billion represents the monetized sum of harmful emissions responsible for an estimated 220,000 work-loss days, more than 109,000 asthma exacerbations, hundreds of thousands of other respiratory impacts, and 2,580 premature deaths.

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PM2.5 pollution linked to blood vessel damage in healthy young non-smoking adults

October 26, 2016

Fine particulate matter air pollution (PM2.5) may be associated with blood vessel damage and inflammation among young, healthy adults, according to new research in Circulation Research, an American Heart Association journal.

Air pollution is known to contribute to cardiovascular disease and related deaths. In 2004, the American Heart Association released a scientific statement, updated in 2010, warning of the risk and recommending that people talk to their doctor about avoiding exposure to air pollution specific to their area. What remained unclear, however, was how air pollution actually affects the blood vessels to increase the risk of disease.

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Large-scale study finds long-term exposure to air pollution linked to high blood pressure

October 25, 2016

Long-term exposure to air pollution is linked to a greater incidence of high blood pressure, according to the largest study to investigate the effects of both air pollution and traffic noise by following more than 41,000 people in five different countries for five to nine years.

The study, published in the European Heart Journal, found that among adults up to one extra person per 100 people of the same age group living in the most polluted areas of cities would develop high blood pressure (hypertension) compared to those living in the less polluted areas. This risk is similar to the effect of being overweight with a body mass index (BMI) between 25-30 compared to people with normal weight (BMI 18.5-25). High blood pressure is the most important risk factor for premature illness and death.

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Study finds ethanol blending appears to reduce significantly genotoxic emissions from gasoline direct injection vehicles

October 24, 2016

A research team from Empa (Swiss Federal Laboratories for Materials Science and Technology) and the University of Applied Sciences Bern, Laboratory for Exhaust Emission Control, reports that ethanol blending appeared to reduce genotoxic emissions from a flex-fuel Euro-5 gasoline direct injection (GDI) vehicle (a Volvo V60 with a 1.6 L engine) under transient and steady driving conditions.

In a paper published in the ACS journal Environmental Science & Technology, the researchers reported that particle number emissions when operating the vehicle in the hWLTC (hot started worldwide harmonized light-duty vehicle test cycle) with E10 and E85 were lowered by 97% and 96% respectively compared with that of E0. CO emissions dropped by 81% and 87%, while CO2 emissions were reduced by 13 and 17%. Emissions of selected polycyclic aromatic hydrocarbons (PAHs) were lowered by 67–96% with E10 and by 82–96% with E85, and the genotoxic potentials dropped by 72% and 83%, respectively.

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ICL study of 39 new Euro-6 diesels finds huge variability in NOx emissions with an average 4.5x the type approval limit

October 21, 2016

A new study by researchers from Imperial College London(ICL) of 39 new Euro 6 diesel passenger cars has foundhuge variability” in the on-road NOx emissions of Euro 6 diesel passenger cars, with results ranging from 1 to 22 times the type approval limit. All but 2 exhibited higher NOx than the limit.

The average NOx emission from the test cars of 0.36 g km-1 equates to 4.5 times the type approval limit; this rose to 5.4 times for urban driving. They attributed the increase in urban cycle NOx emissions in part to more frequent acceleration events. (Urban driving emissions could be reduced by more effective management of traffic flows (e.g., earlier post), easing of congestion and promotion of eco-driving, though further work is required to confirm this, they suggested.)

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CARB approves $363M plan that includes putting more clean vehicles in disadvantaged communities; low-carbon transportation, ZEVs, scrap-and-replace pilot

The California Air Resources Board has adopted a revised funding plan for proceeds from the cap-and-trade program that includes putting more clean vehicles in disadvantaged communities. The investments range from supporting increased numbers of zero-emission heavy-duty trucks and buses to rebates for low- and zero-emission passenger vehicles.

The revised plan for fiscal year 2016-17 keeps much of the original funding plan (approved in June 2016) intact while addressing the smaller budget appropriation of $363 million under AB 1613 and additional direction from the Legislature. Key highlights of the revised plan include:

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Coming HEI study suggests air pollution regulations likely contributors to improvements in air quality and children’s health

October 20, 2016

The Health Effects Institute (HEI) will soon publish a study by Frank Gilliland and his colleagues at the University of Southern California the findings of which suggest that US and California regulations directed at reducing emissions of mobile-source pollutants were likely contributors to improvements in air quality between 1985 and 2012 that were in turn associated with improvements in children’s respiratory health.

The researchers analyzed pollutant monitoring and pulmonary health effects information as well as multiple covariates that they had collected over more than 20 years from participants in several cohorts recruited into the Children’s Health Study (CHS) in Southern California. The children lived in communities that differed in sources and levels of the outdoor pollutants PM, NO2, and ozone.

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DOE awarding up to $80M for supercritical CO2 pilot plant

October 18, 2016

The US Department of Energy (DOE) is awarding up to $80 million for a six-year project to design, build, and operate a 10-MWe (megawatts electrical) supercritical carbon dioxide (sCO2) pilot plant test facility in San Antonio, TX. The project will be managed by a team led by the Gas Technology Institute (GTI), Southwest Research Institute (SwRI), and General Electric Global Research (GE-GR).

The new facility will support the future commercialization of sCO2 Brayton cycle energy conversion systems by testing and demonstrating the potential energy efficiency and cost benefits of this technology. Today the average efficiency of the US fleet of steam Rankine cycle power plants is in the lower 30% range. This new facility has the potential to demonstrate greater than 50% cycle efficiency. If successfully developed, the supercritical CO2 power cycles could provide significant efficiency gains in geothermal, coal, nuclear, and solar thermal power production.

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Cummins Westport begins production of ISL G Near Zero NOx natural gas engine; first commercially available near zero NOx MidRange engine

October 14, 2016

Cummins Westport Inc. (CWI) announced that orders are being processed and production of the ISL G Near Zero (NZ) NOx natural gas engine (earlier post) has commenced. The 8.9-liter ISL G NZ is the first MidRange engine in North America to receive emission certification from both US Environmental Protection Agency (EPA) and Air Resources Board (ARB) in California to meet the optional 0.02 g/bhp-hr. Near Zero NOx Emissions standards eight years in advance of the 2023 California Near Zero NOx schedule and contributing to California Clean Air initiatives.

Exhaust emissions of the ISL G NZ are 90% lower than the current EPA and ARB NOx limit of 0.2 g/bhp-hr and also meet the 2017 EPA greenhouse gas (GHG) emission requirements. CWI natural gas engines have met the 2010 EPA standard for particulate matter (0.01 g/bhp-hr) since 2001.

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ORNL team devises electrocatalyst for direct conversion of CO2 into ethanol with high selectivity; pushing the combustion reaction in reverse

October 13, 2016

Researchers at the Department of Energy’s Oak Ridge National Laboratory (ORNL) have developed an electrocatalyst which operates at room temperature and in water for the electroreduction of dissolved CO2 with high selectivity for ethanol. Their finding was serendipitous. An open-access paper on their work appears in the journal ChemistrySelect.

The team used a catalyst made of carbon, copper and nitrogen and applied voltage to trigger a chemical reaction that essentially reverses the combustion process. With the help of the nanotechnology-based catalyst which contains multiple reaction sites, the solution of carbon dioxide dissolved in water turned into ethanol with a yield of 63%. Typically, this type of electrochemical reaction results in a mix of several different products in small amounts.

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BMW unveils Gen7 5 Series; more efficient gasoline and diesel units; plug-in hybrid 530e in 2017

BMW has unveiled the seventh generation of the BMW 5 Series Sedan, which will go on-sale in markets around the world in February 2017. The 5 Series has been a major hit for BMW, selling 7.6 million units since its first introduction in 1972. Further enhanced dynamics, assistance systems, connectivity and a new and innovative operating system are important new features in the latest generation, in addition to the new, more efficient powertrains.

The new 5 Series features TwinPower Turbo gasoline and diesel engines from the modular BMW EfficientDynamics family of power units. Two diesel engines and two gasoline variants will be available from launch, working in tandem with either rear-wheel drive or BMW xDrive intelligent all-wheel drive. In March 2017, a BMW 5 Series Sedan with plug-in hybrid drive system—the BMW 530e iPerformance—will join the line-up, offering extremely low CO2 emissions of just 46 g/km (2.0 l/100 km), based on the EU test cycle. System output is 185 kW/252 hp.

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New Icon-class ships from Royal Caribbean to be powered by LNG with 2022 delivery; testing hydrogen fuel cells in 2017

October 11, 2016

The newest class of ships from Royal Caribbean Cruises Ltd (RCL) will be powered by liquefied natural gas (LNG) and likely will introduce the use of fuel cell technology, ushering in a new era of shipbuilding that will significantly reduce greenhouse gas emissions. The ships will join the fleet of Royal Caribbean International.

RCL has signed a memorandum of understanding with Finland shipbuilder Meyer Turku for the new class of vessel under the project name “Icon.” The around 200,000 gross ton large cruise ships will be delivered in the second quarters of 2022 and 2024. In the meantime, the company said, it will begin testing fuel cell technology on an existing Oasis-class ship in 2017, and will also run progressively larger fuel cell projects on new Quantum class vessels being built in the next several years.

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Ford used Convergent Science advanced modeling tool for EcoBlue diesel

October 10, 2016

The global automaker Ford used the combustion modelling tool CONVERGE CFD software package from Convergent Science for the development of its new EcoBlue range of high-efficiency diesel engines.

Dr. Werner Willems, Ford technical specialist for combustion systems, said that the Ford team used CONVERGE to refine a number of features on the EcoBlue, including the shape of the combustion chamber, the piston bowl geometry and the fuel injection parameters.

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Detroit Diesel to pay $28.5M to settle MY 2010 diesel emissions complaint from EPA and DOJ

October 07, 2016

Detroit Diesel will pay $28.5 million in a settlement with the US Environmental Protection Agency (EPA) and the US Department of Justice (DOJ) to resolve alleged violations of the Clean Air Act for selling heavy-duty diesel engines that were not certified by EPA and did not meet applicable emission standards. Under the settlement, Detroit Diesel will spend $14.5 million on projects to reduce nitrogen oxide and other pollutants, including replacing high-polluting diesel school buses and locomotive engines with models that meet current emissions standards. Detroit Diesel will also pay a $14 million civil penalty.

The government’s complaint, filed along with the settlement, alleges that Detroit Diesel violated the Clean Air Act by introducing into commerce 7,786 heavy-duty diesel engines for use in trucks and buses in model year 2010 without a valid EPA-issued certificate of conformity demonstrating conformance with Clean Air Act standards to control nitrogen oxide (NOx) emissions. The complaint also alleges that the engines did not conform to emission standards applicable to model year 2010 engines.

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ICAO agrees to market-based measure to address aviation CO2

The UN International Civil Aviation Organization (ICAO) has agreed to recommend adoption of a final Resolution text on a new global market-based measure (GMBM) to control CO2 emissions from international aviation.

ICAO’s Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) is designed to complement the basket of mitigation measures the air transport community is already pursuing to reduce CO2 emissions from international aviation. These include technical and operational improvements and advances in the production and use of sustainable alternative fuels for aviation.

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Government of Canada announces national plan for carbon pricing

October 04, 2016

The Government of Canada has proposed a pan-Canadian approach to pricing carbon emissions; under the new plan, all Canadian jurisdictions will have carbon pricing in place by 2018.

To accomplish this, Canada will set a benchmark for pricing carbon emissions—set at a level that will help Canada meet its greenhouse gas emission targets. Provinces and territories will have flexibility in deciding how they implement carbon pricing. Jurisdictions can implement: (i) an explicit price-based system (a carbon tax such as British Columbia’s or a carbon levy and performance-based emissions system like in Alberta); or (ii) a cap-and-trade system (e.g. Ontario and Quebec).

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Researchers show mixotrophic fermentation process improves carbon conversion, boosting yields and reducing CO2

October 03, 2016

A team from White Dog Labs, a startup commercializing a mixotrophy-based fermentation process, and the University of Delaware have shown that anaerobic, non-photosynthetic mixotrophy—the concurrent utilization of organic (for example, sugars) and inorganic (CO2) substrates in a single organism—can overcome the loss of carbon to CO2 during fermentation to increase product yields and reduce overall CO2 emissions.

In an open-access paper published in Nature Communications, the researchers report on their engineering of the bacterium Clostridium ljungdahlii to produce acetone with a mass yield 138% of the previous theoretical maximum using a high cell density continuous fermentation process. In addition, when enough reductant (i.e., H2) was provided, the fermentation emitted no CO2. They further showed that mixotrophy is a general trait among acetogens.

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Infiniti unveils I4 Variable Compression Turbo engine; targeting 27% improvement in fuel efficiency over V6 engines of similar output

September 30, 2016

At the Paris Motor Show, Infiniti unveiled the new VC-Turbo (Variable Compression Turbo)—the first production-ready variable compression ratio engine. (Earlier post.) VC-Turbo technology combines the power of a high-performance 2.0-liter turbo gasoline engine with the torque and efficiency of an advanced diesel powertrain without the equivalent emissions.

Transforming on demand, Infiniti’s VC-Turbo technology uses an advanced multi-link system to raise or to lower the reach of the pistons, detecting the car’s driving condition and driver inputs, and instantly selecting the most suitable compression ratio. The engine is able to offer any compression ratio between 8:1 (for high performance) and 14:1 (for high efficiency).

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EEA: large-scale roll-out of EVs will help EU shift to green transport, but may challenge power grid

September 27, 2016

A large scale roll-out of electric cars on European roads would result in significantly lower greenhouse gas emissions and lower levels of certain air pollutants, according to a new European Environment Agency (EEA) assessment. However, widespread use of such vehicles would pose challenges for Europe’s power grid in meeting increased electricity demand.

The EEA briefing Electric vehicles and the energy sector — impacts on Europe’s future emissions looks at the impact of different scenarios that take into account the increased use of electric cars and their effect on the European Union’s (EU) energy system, and on emissions of greenhouse gases and selected air pollutants.

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New ICCT study identifies significant potential to reduce aviation fuel consumption by up to 40% by 2034

A new report from the International Council on Clean Transportation (ICCT) identifies significant potential to reduce aviation emissions through emerging fuel efficiency technologies.

The study summarizes the results of the first independent, bottom-up cost assessment of near- (2024) and mid-term (2034) technologies to improve new aircraft fuel efficiency. Carried out in cooperation with a panel of top technical experts and consultants using NASA and DoD-approved models to evaluate aviation technology programs, the study concludes that the rate of fuel efficiency improvement for new aircraft can be more than doubled through 2034, from about 1% today to 2.2% annually, by the adoption of cost effective technologies to improve engine efficiency, reduce aerodynamic drag, and trim aircraft empty weight.

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T&E: VW sells least polluting Euro 6 diesels in Europe; no brand meets Euro 6 in real-world driving; loopholes & defeat strategies

September 26, 2016

A new study by Transport & Environment (T&E) shows that Volkswagen is currently selling the least polluting (Euro 6) diesel vehicles. However, the report “Dieselgate: Who? What? How?” also found that no brand in Europe complies with the latest Euro 6 air pollution limits for diesel cars and vans in real-world driving.

For the in-house analysis, T&E analyzed emissions test data from around 230 diesel car models. Data were taken from the investigations conducted by the British, French and German governments, as well as a large public database. The carmakers’ ranking was built with on-road performance figures mostly measured in real world driving. Among the real-world findings per car brand:

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ICCT study finds that transitioning to low-GWP MAC refrigerants in China could avoid up to US$150B in costs

September 25, 2016

A new study from the International Council on Clean Transportation (ICCT) assesses the feasibility, benefits, and costs of phasing out HFC-134a as the refrigerant in mobile air conditioning (MAC) systems in the Chinese LDV fleet, focusing on three alternatives with lower global warming potential (GWP) most likely to be adopted by automakers with a global supply chain: HFO-1234yf, HFC-152a, and CO2.

Among the findings of the report, “HFC-134a phase-out in the Chinese light-duty motor vehicle sector”, was that, considering the social cost of CO2e, up to 1 trillion RMB in costs (US$150 billion) required to address climate change could be avoided through 2050 by transitioning to low-GWP alternative MACs.

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EPA releases national assessment of strategies to reduce air pollution at ports

September 23, 2016

A new report from the US Environmental Protection Agency (EPA) finds that air pollution at US ports can be reduced significantly at all port types and sizes through a variety of strategies and cleaner technologies. Implementing these approaches, the report finds, would reduce greenhouse gas and other harmful emissions from diesel-powered ships, trucks and other port equipment.

“The National Port Strategy Assessment: Reducing Air Pollution and Greenhouse Gases at US Ports” examines current and future emission trends from diesel engines in port areas, and explores the emissions reduction potential of strategies like replacing and repowering older, dirtier vehicles and engines and deploying zero emissions technologies.

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DEKRA-certified tests: Mercedes-Benz HD trucks cut fuel consumption 22% in 20 years while meeting more stringent emissions rules; VECTO

September 22, 2016

Despite drastically more stringent emission standards for nitrogen oxides and particulates, the fuel consumption of Mercedes-Benz heavy trucks has been reduced by 22% over the last 20 years, according to the results of a comparative test drive certified by the test organization DEKRA.

The August 2016 testing by commercial vehicle magazine Lastauto Omnibus (LaO) compared the latest generation of the Mercedes-Benz Actros long-distance truck compared to the basic model of 1996—a Mercedes-Benz from the SK model series and therefore one of the last representatives of the pre-Actros era. The model 1844 was certified according to the Euro II standard valid in 1996, and was therefore allowed to emit 7 grams of NOx per kilowatt hour (kWh) while staying within the limiting value of 0.15 g/kWh for particulate matter. The number and size of the soot and other particles was not prescribed.

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Cummins Euro 6 engines compatibile with HVO renewable diesel & other paraffinic fuels; fuels at “point of commercial maturity”

Cummins Inc. announced Euro 6 (VI) engine compatibility for use with Hydrotreated Vegetable Oil (HVO) renewable diesel and other EN 15940 paraffinic fuels, representing a significant step forward to reduce the carbon footprint of Cummins-powered bus, truck and coach fleets operating in Europe.

Compared with conventional fossil-based diesel, HVO offers the potential to reduce greenhouse gas (GHG) emissions by 40 to 90 percent over the total life cycle of the fuel, dependent on the level of sustainable feedstock used in the production process.

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Bentley introduces its first diesel: Bentayga Diesel with 48V system & electric supercharger

Bentley Motors has introduced its first diesel model: the Bentayga Diesel SUV. At its core is an all-new, technologically advanced, triple-charged, 4.0-liter, 32-valve V8 engine. Developing 435 PS (429 bhp) and 900 N·m (664 lb. ft.) of torque, the Bentayga Diesel hits a top speed of 270 km/h (168 mph) and can accelerate from 0-100 km/h in 4.8 seconds (0-60 mph in 4.6 seconds). Peak torque is available from very early in the rev range (just 1,000 rpm).

The Bentayga Diesel, equipped with a start-stop system, has the lowest CO2 emissions of any Bentley (210 g/km), as well as a range of more than 1,000 km (621 miles)—allowing owners to, for example, drive from London to Verbier, Bordeaux or the Scottish Highlands on a single tank.

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California Governor signs new super-pollutants legislation into law; black carbon, fluorinated gases and methane

September 20, 2016

California Governor Edmund G. Brown Jr. signed SB 1383, establishing the nation’s toughest restrictions on super pollutants including black carbon, fluorinated gases and methane. The law is in addition to California’s existing raft of climate legislation.

SB 1383 reduces the emission of super pollutants (also known as short-lived climate pollutants) and promotes renewable gas by requiring a 50% reduction in black carbon and 40% reduction in methane and hydrofluorocarbon from 2013 levels by 2030. Sources of these super pollutants include petroleum-based transportation fuels, agriculture, waste disposal and synthetic gases used in refrigeration, air conditioning and aerosol products.

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Technical brief: transportation overtaking electricity generation as the largest source of US CO2 emissions

September 19, 2016

A technical brief by Dr. John DeCicco at the University of Michigan Energy Institute shows that transportation is overtaking electricity generation as the largest source of US CO2.

The average rate at which CO2 is emitted from vehicle tailpipes and other mobile sources has exceeded the rate of CO2 emissions from electric power plants over seven of the past eight months. Although efficiency gains are limiting transportation emissions growth, the gains are not enough to reduce the sector’s CO2 emissions in the face of increased travel and shipping, DeCicco writes. CO2 emissions from the transportation sector increased at an average rate of 1.8% per year over the past four years.

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Cal Energy Commission approves $1M grant to develop 12L near-zero NOx nat gas engine

September 15, 2016

The California Energy Commission approved a $1-million grant to develop a 12-liter natural gas engine that produces near-zero nitrogen oxide (NOx) tailpipe emissions. The engines would be suitable for heavy-duty vehicles. The South Coast Air Quality Management District (SCAQMD) will work with Cummins Westport, Inc., to develop the engine. Cummins has a history of developing natural gas engines for heavy-duty application, and its engines are being used globally in a variety of commercial vehicles.

The California Air Resources Board (CARB) 2010 emission standards for heavy-duty engines establish a limit for NOx emissions of 0.2 grams per brake horsepower hour (g/bhp-hr), and constitute a 90% reduction of emissions compared to the previous standard (CARB 2007) of 2.0 g/bhp-hr. Nevertheless, it is projected that even with the entire on-road fleet of heavy-duty vehicles compliant with the 2010 standards, upcoming National Ambient Air Quality Standards requirements for ozone attainment cannot be achieved in California’s worst air basins without further significant reductions in NOx emissions from heavy-duty fleets.

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UK’s APC awards Dearman-led consortium £6M for development of Dearman Engine; clean, cold power

September 14, 2016

A consortium, led by Dearman, the clean cold and power technology company, has been awarded £6 million (US$7.9 million) by the UK’s Advanced Propulsion Centre to develop zero-emission Dearman Engine technology (earlier post) and applications, helping to move it into manufacturing and full commercial deployment. The Dearman Engine can deliver significant improvements to the fuel efficiency of HGVs and buses, helping to significantly reduce emissions of NOx, particulate matter and CO2.

The project brings together Dearman, Hubbard Products, Air Products, Productiv, Wessington Cryogenics and Loughborough University, who will each bring their own expertise to the development, manufacturing and commercialization of the technology. Government funding will be matched by the consortium, bringing the total investment in the zero emission technology to £15.5 million.

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Air pollution exposure found to be risk factor for type 2 diabetes

September 08, 2016

Exposure to air pollution increases the risk of developing insulin resistance as a pre-diabetic state of type 2 diabetes, according to a new study by scientists of Helmholtz Zentrum München, in collaboration with colleagues of the German Center for Diabetes Research (DZD). The researchers reported these results in the journal Diabetes.

Whether diabetes becomes manifest and when this occurs is not only due to lifestyle or genetic factors, but also due to traffic-related air pollution, said Professor Annette Peters, director of the Institute of Epidemiology II at Helmholtz Zentrum München and head of the research area of epidemiology of the DZD.

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Ricardo and Quanchai to collaborate on new diesel engine development; Twin Vortex Combustion System

September 07, 2016

Ricardo recently signed an agreement with Anhui Quanchai Engine Co., Ltd.—one of China’s largest diesel engine makers—to support the development of a new generation common rail diesel engine platform for commercial applications.

Under the terms of the agreement, Ricardo will support Quanchai in the design and development and calibration of a new diesel engine family, of sizes ranging from 2.5- to 3-litres and to be deployed in both on- and off-highway applications. The engines will be developed to the latest applicable China6 Heavy Duty and China Stage4 Off-Highway regulations, and will employ the Ricardo patented low-soot Twin Vortex Combustion System TVCS. (Earlier post.)

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Researchers find magnetite nanoparticles similar to those from traffic pollution in brain; possible link with Alzheimer’s

September 06, 2016

Researchers from the UK, Mexico and the US have found abundant magnetite nanoparticles in the brain tissue from 37 individuals aged three- to 92-years-old who lived in Mexico City and Manchester, UK. This strongly magnetic mineral has been implicated in the production of reactive oxygen species (free radicals) in the human brain, which are associated with neurodegenerative diseases including Alzheimer’s disease (e.g., Hautot et al. 2003). Their paper is being published in Proceedings of the National Academy of Sciences (PNAS).

Professor Barbara Maher, from Lancaster Environment Centre, and colleagues (from Oxford, Glasgow, Manchester and Mexico City) used spectroscopic analysis to identify the particles as magnetite. Unlike angular magnetite particles that are believed to form naturally within the brain (i.e., biogenic), most of the observed particles were spherical, with diameters up to 150 nm, some with fused surfaces, all characteristic of high-temperature formation—such as from vehicle (particularly diesel) engines or open fires.

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Peugeot brings BlueHDi diesel engines to Boxer commercial vans; 6-speed manual, Stop & Start

September 05, 2016

Peugeot is completing the roll-out of its range of Euro 6 engines with the large van segment. The Peugeot Boxer will now be available with a new range of 2.0 BlueHDi diesel engines (earlier post), designed and produced by the PSA Group.

BlueHDi technology has been tried and tested in Peugeot saloons and SUVs since 2013, treating up to 90% of NOx and 99.9% of even the finest particulates. The new range of Peugeot Boxer 2.0 L BlueHDi engines offers 3 power levels for the core market:

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KCL study finds London air pollution from traffic improving, but continues to exceed limits in many parts of city

New research by scientists at King’s College London suggests that air pollution from London’s roads is improving overall but more work may be needed to tackle some sources of traffic pollution, which continue to breach limits in many parts of the city.

The study, published as an open-access paper in the journal Environmental Pollution, examined trends in air pollution over a ten-year period spanning 2005 to 2014, using data collected from 65 roads. Researchers looked at changes in a number of pollutants including nitrogen dioxide (NO2 ), particulate matter as fine (PM2.5) and coarser (PM10) particles, carbon dioxide (CO2) and black carbon.

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Study finds isopropanol-n-butanol-ethanol and gasoline blend viable as alternative fuel

Researchers from the University of Illinois and colleagues in China investigating the performance, combustion and emission characteristics of a port fuel-injection SI engine fueled with isopropanol-n-butanol-ethanol (IBE)-gasoline blends have concluded that an IBE30 blend could be a good alternative to gasoline.

Bio-n-butanol itself is a promising alternative fuel, produced conventionally from the fermentation of carbohydrates by Clostridium bacteria in a well-established process referred to as ABE fermentation, after its major chemical products: acetone, butanol and ethanol. However, ABE fermentation production suffers from relatively low production efficiency as well as the high cost of component recovery; the product mixture typically has an A:B:E ratio of 3:6:1.

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MIT-led study suggests mobile-phone data provide a deeper picture of pollution exposure in urban settings

September 03, 2016

A study led by MIT researchers, focused on New York City, suggests that using mobile-phone data to track people’s movement provides an even deeper picture of exposure to pollution in urban settings than by studying air-quality levels in fixed places. Their open-access paper is published in the ACS journal Environmental Science & Technology.

Previous environmental epidemiological studies quantifying the health impacts of population exposure to have not considered spatially- and temporally-varying populations. The new study—the first of its kind—measured population activity patterns representing several million people to evaluate population-weighted exposure to air pollution on a city-wide scale. Mobile and wireless devices yield information about where and when people are present; the researchers were able to determine collective activity patterns using counts of connections to the cellular network.

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UTA study indicates air contamination near fracking sites result of operational inefficiencies, not inherent to the extraction process

August 27, 2016

A study led by chemists at the University of Texas at Arlington (UTA) indicates that highly variable contamination events registered in and around unconventional oil and gas developments are the result of operational inefficiencies and not inherent to the extraction process itself.

The study, published in Science of the Total Environment, found highly variable levels of ambient BTEX (benzene, toluene, ethyl benzene, and xylene compounds) in and around fracking gas drilling sites in the Eagle Ford shale region in South Texas. In situ air quality measurements using membrane inlet mobile mass spectrometry revealed ambient benzene and toluene concentrations as high as 1000 and 5000 parts-per-billion, respectively, originating from specific sub-processes on unconventional oil and gas well pad sites. BTEX compounds in high concentrations can be carcinogenic and have harmful effects on the nervous system.

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Study finds in-cabin particulate pollution up to 40% higher in traffic jams or at red lights

August 26, 2016

A new study by a team at the University of Surrey has found that particulate pollution levels inside cars are up to 40% higher when the vehicle is stuck in a traffic jam or stopped at a red traffic light compared to free-flowing traffic conditions.

The study, published as an open access paper in the RSC journal Environmental Science: Processes & Impacts, assessed in-cabin exposure to fine and coarse PM under five different ventilation settings and compared in-cabin exposure at signalized traffic intersections (TIs) with pedestrian exposure. The study also found that car windows closed with the fan/heating off in traffic is the best ventilation setting in traffic—leading up to a 76% reduction in in-car pollutants. Also, the safest setting is the air being circulated internally only by the fan without drawing in polluted air from outdoors.

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DOE to award up to $6.7M to projects to convert captured CO2 to useful products, including fuels

The US Department of Energy (DOE) will award approximately $6.7 million in federal funding for cost-shared projects that will develop technologies that utilize CO2 from coal-fired power plants to produce useful products. DOE’s Office of Fossil Energy is seeking these projects as part of the Department’s Carbon Storage program, which has the goal of developing and advancing technologies to improve the effectiveness of carbon storage, reduce the cost of implementation, and be ready for widespread commercial deployment in the 2025–2035 timeframe.

After carbon dioxide is captured from large point sources, such as coal-fired power plants, it can be injected into underground geological formations from which it cannot escape (geologic sequestration). Another option is to use the CO2 as a reagent to create useful products, such as cement, plastics, or liquid fuels. The new DOE funding opportunity announcement (DE-FOA-0001622) focuses on the second of these pathways which is focused on securing applications for projects that will develop CO2-utilization technologies that produce useful products at lower cost than currently available technologies, without generating additional greenhouse gas emissions.

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U-M study finds crop-based biofuels associated with net increase in GHGs; falsifying the assumption of inherent carbon neutrality

August 25, 2016

A new study from University of Michigan researchers challenges the assumption that crop-based biofuels such as corn ethanol and biodiesel are inherently carbon-neutral—i.e., that only production-related greenhouse gas (GHG) emissions need to be tallied when comparing them to fossil fuels.

In an open-access paper published in the journal Climatic Change, the researchers conclude that once estimates from the literature for process emissions and displacement effects including land-use change are considered, US biofuel use to date is associated with a net increase rather than a net decrease in CO2 emissions.

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MIT team calculates lead emissions from avgas fuel in US contribute to ~$1B in annual damages due to IQ losses

August 24, 2016

Researchers at MIT have produced the first assessment of the annual costs of IQ losses from aircraft lead emissions in the US. Their study, published in the ACS journal Environmental Science & Technology, found that that atmospheric lead pollution attributable to leaded aviation gas (avgas) contributes to US$1.06 billion (the mean from a range of $0.01–$11.6 billion) in annual damages from lifetime earnings reductions, and that dynamic economy-wide methods result in damage estimates that are 54% larger.

Because the marginal costs of atmospheric lead pollution are dependent on background concentration, the researchers also expect the costs of piston-driven aircraft lead emissions to increase over time as regulations on other emissions sources are tightened.

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Zhejiang University team investigates emissions from methanol-gasoline blends

August 23, 2016

Globally, the use of methanol as an alternative fuel has attracted interest because of its low production cost, renewable capacity, and good combustion-related properties (higher thermal efficiency, higher engine power, and lower regulated emissions). In China in particular, there are abundant coal resources, and the technology of using coal to obtain methanol has been perfected with low cost; methanol fuel from coal has become one of the most popular alternative fuels for vehicles.

However, the in-cylinder combustion of methanol also produces a considerable amount of extra toxic emissions, such as alcohols and aldehydes. A team at Zhejiang University has now investigated the impact of methanol–gasoline blends on the pollutant emissions of port-fuel injected spark ignition (SI) engines. A paper on their work is published in the ACS journal Energy & Fuels.

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BC government unveils climate plan

The government of British Columbia recently unveiled its Climate Leadership Plan, targeting the reduction of net annual greenhouse gas emissions by up to 25 million tonnes below current forecasts by 2050 and the creation of up to 66,000 jobs over the next ten years. BC’s target is to reduce 2050 emissions 80% below 2007 levels.

The plan’s initial 21 action items include making electric vehicles more affordable and boosting the Low Carbon Fuel Standard from 10% to 15%. Government is also targeting making buildings more efficient, sequestration opportunities in forests and emission reductions in natural gas production and processing.

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Researchers clarify role of cetane number and aromaticity in soot-NOx tradeoff

August 22, 2016

A study by researchers at Eindhoven University of Technology has found that the “persistent diesel dogma” of “the higher the cetane number (CN) the better” relative to the soot-NOx trade-off is valid in neither conventional or low temperature combustion operation. The open-access study, published in the journal Fuel also reported that a second piece of conventional wisdom—“the lower the aromaticity the better”— is valid in both combustion modes.

The researchers also devised a new, dimensionless parameter—Π—that holds distinct values for the various combustion modes. This can predict either a positive, neutral or negative impact of high CN and low aromaticity on the soot-NOx trade-off based on a given set of engine operating conditions.

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Study suggests focusing on cold starts in gasoline cars as target for emissions reduction

A new study suggests that focusing on a gasoline-fueled vehicle’s cold start is the best target for future design changes to reduce emissions of criteria pollutants. The researchers are presenting their work today at the 252nd National Meeting & Exposition of the American Chemical Society (ACS) in Philadelphia.

Although the Environmental Protection Agency (EPA) has reported that air is cleaner today than it was in the 1970s, more than 130 million people in the US still live in places where smog or particle pollution rises to unhealthful levels. Smog can cause coughing and shortness of breath, and can aggravate asthma or trigger asthma attacks. Much of this haze is formed from volatile organic compounds, or VOCs, and fine particulate matter from tailpipe emissions.

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ExxonMobil & Georgia Tech CMS membrane brings advantages of reverse osmosis separations to hydrocarbon mixtures; potential significant cuts in chemical manufacturing energy use & emissions

August 19, 2016

Scientists from ExxonMobil and the Georgia Institute of Technology have developed new free-standing carbon molecular sieve (CMS) membrane technology that could significantly reduce the amount of energy and emissions associated with manufacturing plastics. Results of the research were published in Science. Using a molecular-level filter, the new process employs a form of reverse osmosis to separate para-xylene, a chemical building block for polyester and plastics, from complex hydrocarbon mixtures. The current commercial-scale process used around the world relies on energy and heat to separate those molecules.

Reverse-osmosis membranes are already widely used to desalinate seawater, consuming a fraction of the energy required by thermally driven processes. The new organic solvent reverse osmosis process is believed to be the first use of reverse osmosis with carbon membranes to separate liquid hydrocarbons.

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New Flyer adds 2016 Cummins Westport ISL G Near Zero engine to Xcelsior bus lineup; debuting in LA

August 18, 2016

Flyer of America Inc., a subsidiary of New Flyer Industries Inc., the largest heavy-duty transit bus and motor coach manufacturer and parts distributor in North America, is adding the 2016 Cummins Westport ISL G Near Zero engine (earlier post) to its Xcelsior bus family. New Flyer is the first transit manufacturer to offer the industry’s cleanest certified engine and will deliver the first original OEM installation of a the engine in the third quarter of 2016.

The ISL G NZ compressed natural gas is certified by both US Environmental Protection Agency (EPA) and Air Resources Board (ARB) in California to meet the 0.02 g/bhp-hr optional Near Zero NOx Emissions standards for medium-duty truck, urban bus, school bus and refuse applications. The engine will be used to power a New Flyer Xcelsior XN40 bus for the Los Angeles County Metropolitan Transportation Authority (LA Metro). LA Metro operates the largest natural gas engine transit vehicle fleet in North America.

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2017 Range Rover Sport gains new Ingenium 2.0L diesel as option; semi-autonomous driving tech

August 17, 2016

For the 2017 Model Year, Range Rover Sport will debut the new 2.0-liter four-cylinder Ingenium diesel engine (earlier post), manufactured at Jaguar Land Rover’s own engine plant in Wolverhampton, UK. Already available on both Discovery Sport and Range Rover Evoque models, Ingenium is Jaguar Land Rover’s new breed of engine designed for performance, refinement and efficiency.

The 2017 Model Year Range Rover Sport is the first full-sized Land Rover SUV to feature a four-cylinder diesel engine. The all-aluminium 2.0-liter SD4 Ingenium produces 240 hp and 500 N·m (369 lb-ft) of torque, and is capable of returning (38 mpg US, 6.2 l/100 km) on the EU combined cycle with emissions of 164 g/km (manufacturer’s estimated data).

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DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

August 16, 2016

The US Department of Energy (DOE) will invest up to $137 million in two programs, subject to appropriations, to develop next-generation technologies that will support industry in going beyond the newly announced Phase II standard for medium- and heavy-duty vehicles (earlier post) and also accelerating technology advances for passenger cars and light trucks.

One initiative, SuperTruck II (earlier post), will award $80 million to four projects to develop and to demonstrate cost-effective technologies that more than double the freight efficiency of Class 8 trucks. Through the other initiative, the Office of Energy Efficiency and Renewable Energy Vehicle Technologies Office Program Wide Funding Opportunity Announcement (earlier post)selections, 35 new projects will receive $57 million to develop and deploy a wide array of cutting-edge vehicle technologies, including advanced batteries and electric drive systems, to reduce carbon emissions and petroleum consumption in passenger cars and light trucks.

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EPA and DOT issue final Phase 2 GHG and fuel efficiency rulemaking for medium- and heavy-duty trucks

The US Environmental Protection Agency (EPA) and the US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) jointly released the finalized Phase 2 greenhouse gas and fuel efficiency standards for medium- and heavy-duty trucks.

The product of four years of testing and research and outreach to industry, environmental organizations, labor unions, and other stakeholders, the vehicle and engine performance standards will cover model years 2021-2027, and apply to semi-trucks, large pickup trucks and vans, and all types and sizes of buses and work trucks. These standards will result in significant GHG emissions reductions and fuel efficiency improvements across all of these vehicle types. For example, when the standards are fully phased in, tractors in a tractor-trailer will achieve up to 25% lower CO2 emissions and fuel consumption than an equivalent tractor in 2018.

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KBA approves Volkswagen’s fix for 1.2-liter EA189 TDI diesel engine

August 14, 2016

Germany’s Federal Motor Transport Authority (KBA) has approved the technical emissions-control solution—a software update—for vehicles with the 1.2-liter EA189 TDI diesel engine. The KBA approval applies to 460,000 vehicles of affected Group brands, including the Volkswagen Polo and SEAT Ibiza models.

The software update can now be promptly carried out on the first vehicles of the second affected engine-size category. The owners of these models are being successively informed and can then make an early appointment with an authorised workshop to have the update done.

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Study quantifies impact of oil and gas emissions on Denver’s ozone problem

August 12, 2016

The first peer-reviewed study to directly quantify how emissions from oil and natural gas (O&NG) activities influence summertime tropospheric ozone (O3) pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem.

Summertime ozone pollution levels in the northern Front Range periodically spike above 70 parts per billion (ppb), which is considered unhealthy—on average, 17 ppb of that ozone is produced locally. The new research, published in an open-access paper in the Journal of Geophysical Research: Atmospheres, shows that oil and gas emissions contribute an average of 3 ppb of the locally produced ozone daily, and potentially more than that on high-ozone days.

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Argonne team finds significant albedo warming effect for switchgrass ethanol

August 11, 2016

One of the key points of contention over the climate benefit of biofuels is the impact of land use change (LUC) associated with biofuel feedstock production. LUC results in biogeochemical (e.g., soil organic carbon) and biogeophysical (e.g., surface albedo, evapotranspiration, and surface roughness) changes. Of the biogeophysical factors, surface albedo has been considered a dominant effect at the global scale.

A team at Argonne National Laboratory has now quantified land use change (LUC)-induced albedo effects for three major biofuels in the US, using satellite data products for albedo and vegetation observations. Published in the RSC journal Energy & Environmental Science, the analysis indicates that the land use change (LUC)-induced albedo effect is small for corn and miscanthus ethanol, but is significant for switchgrass ethanol, which is driven by the types, locations, and intensities of various land conversions to these biofuel feedstocks.

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Study: more stringent O3 and PM2.5 air pollution standards could save thousands of lives, greatly improve public health

Reducing outdoor concentrations of two air pollutants, ozone (O3) and fine particulate matter (PM2.5), to levels below those set by the US Environmental Protection Agency would likely save thousands of lives each year, result in far fewer serious illnesses and reduce missed days of school and work, according to a new analysis conducted by the American Thoracic Society and the Marron Institute of Urban Management at New York University.

In “Estimated Excess Morbidity and Mortality Caused by Air Pollution above ATS Recommended Standards, 2011-2013,” published online in the August edition of Annals of the American Thoracic Society, researchers report on the annual health benefits of meeting more protective standards recommended by the ATS for O3 and PM2.5. They found that meeting a 0.060 parts per million (ppm) 8-hour standard for O3, rather than the EPA’s 0.070 ppm standard, and an 11 micrograms per cubic meter (µg/m3) annual standard for PM2.5, rather than the EPA’s 12 µg/m3 standard, would each year:

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EPA awards $4.5M to advance air monitoring technology

August 10, 2016

The US Environmental Protection Agency (EPA) will award a total of $4.5 million to six research organizations to develop and to use low-cost air pollution sensor technology, while engaging communities to learn about their local air quality.

While recent advances in technology have led to the development of low-cost air pollution sensors, they have not been widely tested, especially under field conditions. These grants will help fund research projects that explore how scientific data can be effectively gathered and used by communities to learn about local air quality.

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Researchers say fuel market rebound effect can result in increased GHG emissions under RFS2; suggest taxes over mandates

August 08, 2016

The US Renewable Fuel Standard (RFS2) is intended to reduce greenhouse gas emissions from transportation. However, argues a team from the University of Minnesota in an open-access paper published in the journal Energy Policy, once the “fuel market rebound effect” is factored in, RFS2 actually increases GHG emissions when all fuel GHG intensity targets specified under the act are met.

Increasing the supply of low-carbon alternative fuels is a basic strategy to reduce greenhouse gas emissions. However, the Minnesota team notes, increasing the supply of fuels tends to lower energy prices, which encourages in turn encourages additional fuel consumption. This “fuel market rebound effect” can undermine climate change mitigation strategies, even to the point where efforts to reduce GHG emissions by increasing the supply of low-carbon fuels may actually result in increased GHG emissions.

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Tufts team finds aviation impact on particle number concentrations downwind of airport; correlation with flight activity

Jet aircraft emit ultrafine particles (UFPs; aerodynamic diameter of <100 nm) at high rates. In a study with implications for populated areas near airports, a team from Tufts University in Boston has found that the impact of aviation on ambient ultrafine particle number concentrations (PNCs) extend many kilometers downwind of Boston’s Logan airport.

In the study, published in the ACS journal Environmental Science & Technology, the Tufts team analyzed PNCs measured from 3 months to 3.67 years at three sites within 7.3 km of the airport. At sites 4.0 and 7.3 km from the airport, average PNCs were 2- and 1.33-fold higher, respectively, when winds were from the direction of the airport compared to other directions. This indicated that aviation impacts on PNC extend many kilometers downwind of Logan airport, the researchers said.

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Aqua Metals opens first AquaRefining center for low-pollution lead-acid battery recycling

Aqua Metals, Inc. recently held an open house at its first AquaRefinery at the Tahoe-Reno Industrial Center (TRIC) in McCarran, Nevada. The company says that its proprietary AquaRefining is first environmentally friendly process to recycle lead-acid batteries (LABs).

The AquaRefining technology extracts lead from LABs with a room temperature, closed-loop, water-based process that results in significant reductions of hazardous waste and direct human contact with the lead itself. The process produces lead that is as pure as—or purer than—mined lead, requiring no secondary processing.

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Air pollution may shorten survival of patients with lung cancer

August 05, 2016

Air pollution may shorten the survival of patients with lung cancer, suggests a population-based study by a team from the University of Southern California published in the journal Thorax. The trends were most noticeable for early stage disease, particularly adenocarcinoma—the most common type of non-small cell lung cancer, which accounts for 80% of lung cancer cases—the findings show.

Air pollution has been linked to a higher incidence of lung cancer and death, but little is known about its potential impact on an individual’s chances of survival after diagnosis.

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ORNL team further characterizes PM from RCCI combustion; possible different PM formation process than conventional diesel

August 04, 2016

Researchers at Oak Ridge National Laboratory (ORNL) have been working for years to advance reactivity-controlled compression ignition (RCCI) technology (e.g., earlier post, earlier post). The work includes not only advancing the combustion technology itself, but also characterizing and analyzing the emissions from RCCI (earlier post).

In a new open-access paper published in the International Journal of Engine Research, the Oak Ridge team summarizes its research to date on characterizing the nature, chemistry and aftertreatment considerations of RCCI particulate matter (PM) and presents new research highlighting the importance of injection strategy and reactive and unreactive fuel compositions on RCCI PM formation.

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DOE to award $7M to accelerate fuel and engine co-optimization technologies; Co-Optima initiative

August 01, 2016

The US Department of Energy (DOE) will award up to $7 million in project funding to accelerate the introduction of affordable, scalable, and sustainable high-performance fuels for use in high-efficiency, low-emission engines as part of the Co-Optimization of Fuels and Engines (Co-Optima) initiative. (Earlier post.)

Co-optimized fuels and engines offer the opportunity to build on decades of advancements in both fuels and engines. Groundbreaking research in the last 10 years has identified combustion engine strategies that—especially if optimized to run on new fuels—would offer significantly higher efficiency and produce fewer engine-out pollutants than current engines. The new funding opportunity (DE-FOA-0001461) will advance the long-term objective of the Co-Optima initiative to accelerate widespread deployment of significantly improved fuels and vehicles (from passenger to light truck to heavy-duty commercial vehicles) by 2030.

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UI, Argonne develop catalyst for more efficient solar-powered reduction of CO2 to CO for conversion to fuel

In a new study from the US Department of Energy’s Argonne National Laboratory and the University of Illinois at Chicago, researchers report devising a new transition metal dichalcogenide (TMDC) nanoarchitecture for catalytic electrochemical reduction of CO2 to carbon monoxide (CO) in an ionic liquid.

In their paper published in the journal Science, the researchers found that tungsten diselenide nanoflakes show a current density of 18.95 milliamperes per square centimeter, CO faradaic efficiency of 24%, and CO formation turnover frequency of 0.28 per second at a low overpotential of 54 millivolts. They also applied this catalyst in a light-harvesting artificial leaf platform that concurrently oxidized water in the absence of any external potential.

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Researchers urge Chinese government to encourage bikes, buses and rail over cars and commercial vehicles due to emissions and health concerns

Based on the results of their analysis of the potential air quality and health impacts of travel demand in China under business-as-usual and alternative transport scenarios, a team of researchers in China is urging policymakers to encourage the replacement of private cars for short trips with bicycles or public buses and the replacement of commercial vehicles with rail transport.

In their paper, published in the journal Energy Policy, Ling-Yun HE and Lu-Yi QIU, observe that regulatory policies imposed on vehicle usage as well as on car ownership can not solve the growing emissions problem.

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California releases Sustainable Freight Action Plan to transform freight system; 25% more efficient by 2030

July 30, 2016

In response to an Executive Order issued last year by California Governor Edmund G. Brown Jr., state agency leaders on Friday released the California Sustainable Freight Action Plan, a comprehensive document that serves as a blueprint for transforming the state’s multi-billion dollar freight transport system into one that is environmentally cleaner, more efficient, and more economically competitive than it is today.

The revised document is similar to the draft version issued in May 2016, but reflects new input provided by industry, labor, regional and local government, and community and environmental group stakeholders, who submitted more than 85 comments on the draft plan.

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Penn State, U Mich team characterizes soot generated by low-temperature diesel combustion

July 29, 2016

Researchers from Penn State and the University of Michigan have characterized the nanostructure and oxidative reactivity of soot generated by a light-duty turbodiesel engine operating under a dilute, low-temperature combustion process referred to as high-efficiency clean combustion (HECC). Their paper appears in the International Journal of Engine Research.

Earlier work by members of the team (Gregory Lilik and André Boehman) had shown that high cetane number fuel with HECC leads to reductions in all primary pollutant emissions—i.e., THC and CO as well as NOx and PM. (Earlier post.) Less established, however, is how well such dilute combustion processes influence soot formation.

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EIA projects energy intensity of US steel production to drop 27% by 2040

Steel production is energy-intensive; in 2015, the steel industry accounted for 1.5% of all industrial shipments in the US but 6.1% of industrial delivered energy consumption. The US Energy Information Administration’s (EIA) Annual Energy Outlook 2016 (AEO2016) Reference case projects that energy use in the steel industry will further increase by 11% over 2015–2040.

Over the same period, however, the AEO2016 projects in its Reference case a 27% drop in the steel industry’s energy intensity, compared with an 18% reduction in total industrial energy intensity. Several alternative cases examine drivers for further energy intensity reductions in the steel industry.

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BMW unveils latest Efficient Dynamics 3- and 4-cylinder gasoline and diesel engines

At its Innovation Days 2016 event in Munich, BMW unveiled new versions of its three and four- cylinder gasoline and diesel engines. Like their predecessors, the new power units are based on the modular system that enables the application of consistent design principles, a shared architecture and matching components.

The key elements of the standardized concept include the in-line engine’s basic design principle; an aluminium crankcase with uniform positioning of the intake and exhaust sides; a cylinder displacement of around 500 cubic centimeters per combustion chamber; as well as the arrangement of timing chains and ancillary units. In addition to this, the full line-up of gasoline and diesel engines feature BMW TwinPower Turbo technology.

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Berkeley TSRC study quantifies VMT and GHG benefits of car2go car-sharing in North America

July 25, 2016

car2go NA is currently the largest flexible one-way carsharing service in North America. Now, a study conducted by the University of California Berkeley’s Transportation Sustainability Research Center (TSRC) concludes that car2go’s carsharing model can complement existing mass transit options; reduces the overall number of vehicles on the road; and ultimately improves mobility in densely-populated urban areas.

Among the study’s conclusions were that, on balance, car2go changes VMT (vehicle miles travelled) by -6% to -16% per car2go household; GHG emissions change by -4% to -18% per car2go household. Overall, the results of this study suggest that car2go one-way carsharing is substantively impacting travel behavior, miles driven, GHG emissions, and the number of vehicles on urban roads within operating regions.

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European Strategy for low-emission mobility stresses digital tech, electrification and ZEVs

July 22, 2016

Earlier this week, the European Commission published a strategy for low-emission mobility, which sets out guiding principles to Member States to prepare for the future. EU legislation currently refers to low-emission vehicles as vehicles having tailpipe emissions below 50 g/km. This would include some plug-in hybrids, full electric cars and hydrogen fuel cell vehicles. The latter two examples also represent zero-emission vehicles.

The low-emission mobility strategy will frame the initiatives that the Commission is planning in the coming years, and it maps the areas in which it is exploring options. It also shows how initiatives in related fields are linked and how synergies can be achieved. In parallel to this strategy, the Commission is launching public consultations on the approach towards reducing emissions from road transport: cars and vans as well as trucks, buses and coaches.

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