|WCI partner GHG emissions and regional goal. Click to enlarge.|
The Western Climate Initiative (WCI) —which currently includes the states of Washington, Oregon, California, Arizona, New Mexico and Utah, and the Canadian provinces of British Columbia and Manitoba—has set a reduction target of 15% below 2005 levels by 2020.
This number represents an aggregate of the goals set by individual states and provinces before joining the Initiative, but in no way precludes states from meeting stronger standards, nor does it replace the partners’ existing goals. By setting the target, the group has met the first deadline under the agreement established in February 2007, which was to first set an overall regional greenhouse gas reduction goal by 26 August.
The WCI is encouraging participation by additional US states, tribes, Canadian provinces, and Mexican states that are making comparable efforts to combat climate change. WCI partners acknowledge that new entrants and updates to data may result in some incremental changes to the regional goal.
Each partner will update the other WCI partners on their climate action plan and GHG emissions inventories every two years to ensure that actions are underway at levels consistent with full achievement of the 2020 goal.
The WCI aggregate greenhouse gas emission reduction goal of 15% below 2005 levels by 2020 is based on:
The aggregation of GHG emissions and emissions goals of WCI partners that have thus far established a 2020 goal (Arizona, British Columbia, California, New Mexico, Oregon, and Washington) and Manitoba’s short-term goal.
Currently available state or provincial emissions inventories. Some of these inventories are currently under revision. While further changes to specific emissions estimates are likely, the aggregate regional emission reduction goal for the current partners is unlikely to deviate substantially from 15% below 2005 levels by 2020.
Gross emissions estimates, across all sectors, for the six greenhouse gases reported to the UN Framework Convention on Climate Change by the US EPA in the US Greenhouse Gas Inventory and by Environment Canada in the Canada National Inventory Report: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6). These estimates are presented in terms of CO2 equivalence (CO2e), which indicates the relative contribution of each gas to global average radiative forcing on a 100-year Global Warming Potential (GWP) weighted basis. Gross emissions estimates do not include changes in biological carbon stocks due to agriculture, forestry, and land use change. In addition, GHG emissions associated with international aviation and international bunker fuels are generally excluded.
Consumption-based (or “load-based”) emissions estimates for the electricity sector, except where such estimates are currently unavailable, in which case production-based estimates are used (British Columbia). Consumption-based estimates reflect the emissions associated with generating the electricity delivered to consumers in each state or province whether the electricity was generated in state/province or out of state/province. Considerable work is currently underway to further develop and improve consumption-based estimates.
|State and Provincial Goals for GHG Reduction|
|State or Province||Short term|
|Arizona||–||2000 levels by 2020||50% below 2000 levels by 2040|
|British Columbia||–||33% below 2007 by 2020||–|
|California||2000 levels by 2010||1990 levels by 2020||80% below 1990 by 2050|
|Manitoba||6% below 1990||–||–|
|New Mexico||2000 levels by 2012||10% below 2000 by 2020||75% below 2000 by 2050|
|Oregon||arrest emissions growth||10% below 1990 by 2020||>75% below 1990 by 2050|
|Utah||Will set goals by June 2008|
|Washington||–||1990 levels by 2020||50% below 1990 by 2050|