Here is a map of U.S. CO2 sources (from the NETL carbon sequestration atlas) overlaid with the states which are participants/observers in) various regional GHG reduction initiatives. More information from the Pew Center on Global Climate Change. Briefly, the abbreviations in the figure are:
- WCI: Western Climate Initiative
- MGGA: Midwestern Greenhouse Gas Reduction Accord
- RGGI: Regional Greenhouse Gas Initiative
Note: Some provinces of Canada also participate in these agreements, however, they are not shown here.