The European Parliament and the Council have reached provisional agreement on a regulation setting, for the first time in the EU, strict CO2 emission standards for trucks. Under the agreement, emissions from new trucks will have to be 15% lower by 2025 and 30% lower in 2030 compared to 2019... Read more →

In 2017, total gross U.S. greenhouse gas emissions were 6,472.3 MMT (million metric tons) CO2 equivalent, a decrease of 0.3% from 2016, according to the US Environmental Protection Agency’s (EPA’s) latest Greenhouse Gas Inventory. The decrease in total greenhouse gas emissions between 2016 and 2017 was driven in part by... Read more →

Reintroducing commercial supersonic transport (SST) aircraft into the global aviation fleet could have significant noise and climate impacts by 2035, according to a new study by the International Council on Clean Transportation (ICCT). The paper analyzes the landing and takeoff (LTO) noise, sonic boom, and CO2 implications of introducing 2,000... Read more →

Fewer soot particles in the exhaust stream of aircraft reduces the formation of ice crystals and therefore the climate impact of the resulting contrail cirrus. Halving the ice particles that form in the contrail decreases the climate-warming effect of the contrail cirrus by 20%; the effect is halved if there... Read more →

US electric power sector CO2 emissions have declined 28% since 2005 because of slower electricity demand growth and changes in the mix of fuels used to generate electricity, according to the US Energy Information Administration (EIA). EIA calculated that CO2 emissions from the electric power sector totaled 1,744 million metric... Read more →

A coalition of nine Northeast and Mid-Atlantic states and the District of Columbia announced their intent to design a new regional low-carbon transportation policy proposal that would cap and reduce carbon emissions from the combustion of transportation fuels, and invest proceeds from the program into low-carbon and more resilient transportation... Read more →

Soot from road traffic in emerging countries can reach high altitudes, where it can be transported over long distances and thus contributes to global warming, according to the findings of a study performed by an international team of researchers in the Bolivian cities of La Paz (the seat of government),... Read more →

A consortium of researchers led by Caltech, in partnership with MIT; the Naval Postgraduate School (NPS); and JPL, which Caltech manages for NASA, seeks to build a new type of climate model that is designed to provide more precise and actionable predictions. Leveraging recent advances in the computational and data... Read more →

Maersk, the world’s largest container shipping company, has set a goal to reach carbon neutrality by 2050. To achieve this goal, carbon neutral vessels must be commercially viable by 2030, and an acceleration in new innovations and adaption of new technology is required. The maritime industry emitted close to 1000... Read more →

California is not on track to meet the greenhouse gas reductions expected under SB 375 for 2020, with emissions from statewide passenger vehicle travel per capita increasing and going in the wrong direction, according to a new report published by the California Air Resources Board (ARB). While overall, California has... Read more →

Greenhouse gas (GHG) emissions across the European Union rose slightly in 2017, mostly because of the transport sector. Preliminary estimates published in the European Environment Agency’s (EEA) annual trends and projections assessments show a 0.6% emissions increase in 2017 from 2016. This limited increase means that the EU is still... Read more →

The European Council agreed on setting a target of a 35% average reduction in CO2 emissions form new cars by 2030. This position is a basis on which to begin talks with the European Parliament, which just came out with its own target of 40% by 2030 (earlier post). The... Read more →

Electrocatalysis and photocatalysis (artificial photosynthesis) are among the most promising ways to achieve effective storage for renewable energy. CO2 electroreduction has been capturing the imagination of researchers for more than 150 years because of its similarity to photosynthesis. Recent research in electrocatalytic CO2 conversion points the way to using CO2... Read more →

Aerosols are tiny particles released into the atmosphere by human activities; they have proven negative effects on air quality—damaging human health and agricultural productivity. However, while greenhouse gases cause warming by trapping heat in the atmosphere, some aerosols can have a cooling effect on the climate because the aerosol particles... Read more →

A study led by scientists at the US Department of Energy’s Pacific Northwest National Laboratory found that, in the western United States, increases in aerosols from East Asia decreased the radiative warming effect induced by reductions in US emissions by 25% from 1980-2014. The open-access study appears in the AGU... Read more →

The California Air Resources Board (CARB) has proposed amending the California Low-Emission Vehicle III Greenhouse Gas Emission Regulation to ensure that cars and light-duty trucks for model years 2022-2025 continue to meet California standards even if Federal standards are frozen. (Earlier post.) Recognizing the value of a national program to... Read more →

The California Air Resources Board (CARB) announced that greenhouse gas emissions in California in 2016 fell below 1990 levels for the first time since emissions peaked in 2004—a reduction roughly equivalent to taking 12 million cars off the road or saving 6 billion gallons of gasoline a year. Under Assembly... Read more →

A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock (earlier post), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas. The results of this... Read more →

During the first three years of California’s 5-year-old cap-and-trade program, the bulk of the greenhouse gas reductions occurred out of state—i.e., state residents did not see the benefits of improved air quality from presumed reductions in harmful co-pollutants, such as particulate matter—according to a new study led by UC Berkeley... Read more →

A new study finds that the growth of carbon production from Chinese exports has slowed or reversed, reflecting a “new phase of globalization” between developing countries that could undermine international efforts to reduce emissions. The paper is published in Nature Communications. The study, involving researchers from the University of East... Read more →

Rio Tinto and Alcoa Corporation announced a revolutionary process to make aluminum that produces only oxygen as a by-product, eliminating all direct greenhouse gas emissions from the traditional smelting process. In Canada alone, use of the technology could eliminate the equivalent of 6.5 million metric tonnes of greenhouse gas emissions,... Read more →

In April 2018, the US Environmental Protection Agency (EPA) completed the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and determined that the current standards are not appropriate and should be revised. (Earlier post.) The California Air Resources... Read more →

In Japan, Aichi Prefecture, Chita City, Toyota City, Chubu Electric Power, Toho Gas, Toyota Motor Corporation, and Toyota Industries have launched the Chita City and Toyota City Renewable Energy-use Low-carbon Hydrogen Project. The project is a first step toward realizing the 2030 vision of a low-carbon hydrogen supply chain formulated... Read more →

A new earth modeling system will support weather-scale resolution and use advanced computers to simulate aspects of Earth’s variability and anticipate decadal changes that will impact the US energy sector in coming years. After four years of development, the Energy Exascale Earth System Model (E3SM) is being released to the... Read more →

The International Council on Clean Transportation (ICCT) reports that the Marine Environment Protection Committee of the International Maritime Organization (IMO) has adopted a resolution codifying an initial greenhouse gas (GHG) strategy for international shipping. This strategy, which represents the first global climate framework for shipping, includes quantitative GHG reduction targets... Read more →

Researchers have measured CO2 emissions from fossil fuel use in California and compared them to reported emissions. This is the first time fossil fuel emissions have been independently checked for such a large area. The team of researchers, led by researchers from Imperial College London (ICL), developed a technique to... Read more →

The Stanford Energy Modeling Forum (EMF) was established at Stanford more than 40 years ago to bring together leading experts and decision makers from government, industry, universities, and other research organizations to study important energy and environmental issues. For each study, the Forum organizes a working group to develop the... Read more →

The US Environmental Protection Agency (EPA) Administrator Scott Pruitt announced the completion of the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and his final determination that the current standards are not appropriate and should be revised. Administrator... Read more →

Numerous studies have tackled the future environmental impact of battery-electric vehicles; the resulting assessments are highly uncertain. Now, a team of researchers at the Paul Scherrer Institut in Switzerland, with colleagues at Leiden University (Netherlands) and PBL Netherlands Environmental Assessment Agency have used Monte Carlo and global sensitivity analysis to... Read more →

The current decline is ales of diesel light duty vehicle in Europe does not put EU CO2 targets out of reach of automakers, according to a new analysis by the International Council on Clean Transportation (ICCT). Other technologies—such as efficiency improvements in gasoline engines as well as the rollout of... Read more →

Audi remains convinced of the potential of the fuels e-gas, “e-benzin” (e-gasoline) and e-diesel and is continuing to pursue its e-fuels strategy. (Earlier post.) Audi and its development partners Global Bioenergies S.A. (earlier post) and the Fraunhofer Center for Chemical Biotechnological Processes (CBP) now report that they have for the... Read more →

Average CO2 emissions generated by new cars in Europe increased during 2017—the first rise in 10 years—according to a new analysis by JATO Dynamics. Covering 23 European markets, the study found that average CO2 emissions increased by 0.3 g/km in 2017, finishing at 118.1 g/km. This rise in average CO2... Read more →

Greenhouse gas emissions (GHGE) from the Information and Communication Industry (ICT) could grow from roughly 1–1.6% in 2007 to exceed 14% of the 2016-level worldwide GHGE by 2040, accounting for more than half of the current relative contribution of the whole transportation sector, according to a new study from McMaster... Read more →

Crude palm oil is one of the more than ten renewable raw materials that Neste uses to produce a range of renewable products, including renewable diesel. Palm oil represents approximately 20% of Neste’s renewable raw material usage annually. Neste has been exploring ways to contribute to improving palm oil industry’s... Read more →

The UK automotive industry warned that the current anti-diesel agenda combined with the ongoing slow take-up of electric vehicles could mean industry misses its next round of CO2 targets in 2021, with negative consequences for the UK’s own climate change goals. The warning came as a new report published by... Read more →

Greater reliance on energy taxation is needed to strengthen efforts to tackle the principal source of both greenhouse gas emissions and air pollution, according to a new OECD report. Taxes are effective at cutting harmful emissions from energy use, but governments could make better use of them. In 2015, outside... Read more →

A cradle-to-grave (C2G) assessment of greenhouse gas (GHG) emissions and costs for current (2015) and future (2025–2030) light-duty vehicles by a team from US DOE and national laboratories, major automakers, EPRI and Chevron has found that currently, hybrid and plug-in hybrid petroleum-fueled vehicles provide the most attractive cost in terms... Read more →

Removing fossil fuel subsidies would have only a small effect on CO2 emissions and renewable energy use, according to a new study led by the International Institute for Applied Systems Analysis (IIASA) and published in the journal Nature. Fossil fuel subsidies amount to hundreds of billions of dollars worldwide, and... Read more →

Marine shipping fuels will get cleaner in 2020 when a regulation by the International Maritime Organization (IMO) requires a decrease in the allowable amount of sulfur in fuel oil from 3.5% to 0.5%—i.e., from 35,000 parts per million (ppm) to 5,000 ppm. This marks the most significant improvement in global... Read more →

Ultrafine aerosols—minute particles from urban (e.g., vehicles) and industrial air pollution—fuel powerful storms and influence weather much more than has been appreciated, according to a study published in the journal Science. Scientists have known that aerosols may play an important role in shaping weather and climate; the new study shows... Read more →

Europe’s transport sector is making only mixed progress in meeting its environment, health and climate policy targets, according to the latest European Environment Agency (EEA) assessment which tracks the short and long-term environmental performance of this key economic sector across the European Union. The EEA Briefing “Transport and Environment Reporting... Read more →

In an open-access paper published in Scientific Reports, a team from Fraunhofer ISI and KIT (Karlsruhe Institute of Technology) has presented the first systematic overview of empirical findings on the electrification of vehicle mileage based on on actual PHEV (plug-in hybrid) and BEV (battery-electric vehicle) usage for the US and... Read more →

BP, Eni, ExxonMobil, Repsol, Shell, Statoil, Total and Wintershall committed to reduce further methane emissions from the natural gas assets they operate around the world. The energy companies also agreed to encourage others across the natural gas value chain—from production to the final consumer—to do the same. The commitment was... Read more →

Global emissions of carbon dioxide from burning fossil fuels have risen again after a three year hiatus, according to new analysis from the Global Carbon Project (GCP). According to the GCP, global emissions from all human activities will reach 41 billion tonnes in 2017, following a projected 2% rise in... Read more →

As part of a newly released Clean Mobility package, the European Commission is proposing a 30% reduction in average CO2 emissions for new cars and vans from 2021 to 2030. The proposal includes targets both for 2025 and 2030. The 2025 intermediary target of a 15% reduction is intended to... Read more →

The governing boards of the ports of Los Angeles and Long Beach unanimously approved the 2017 Clean Air Action Plan (CAAP) Update, ushering in a new era of aggressive clean air strategies for moving cargo through the nation’s busiest container port complex. The document provides high-level guidance for accelerating progress... Read more →

The eighth edition of UN Environment’s Emissions Gap report, released ahead of the UN Climate Change Conference in Bonn, finds that national pledges only bring approximately one-third of the reduction in emissions required by 2030 to meet climate targets, with private sector and sub-national action not increasing at a rate... Read more →

Concentrations of carbon dioxide in the atmosphere surged at a record-breaking speed in 2016 to the highest level in 800,000 years, according to the World Meteorological Organization’s Greenhouse Gas Bulletin. Globally averaged concentrations of CO2 reached 403.3 parts per million in 2016, up from 400.00 ppm in 2015 because of... Read more →

A new study by a team from the University of Pennsylvania and MIT suggests it will be easier for cities to reduce CO2 emissions coming from residential energy use rather than from local transportation. This reduction will happen mostly thanks to better building practices, not greater housing density. The study... Read more →

The Oil and Gas Climate Initiative (OGCI) has made its first three investments, moving forward the organization’s commitments to spur the growth of promising low carbon technologies. (Earlier post.) OGCI Climate Investments is the $1-billion investment fund established last year by OGCI to invest in promising technologies and business models... Read more →