The EPA last Monday finalized its long-awaited finding under the Clean Air Act that greenhouse gases are pollutants that endanger the health and welfare of Americans. After the U.S. Supreme Court found in the case of Massachusetts v. EPA that greenhouses gases are pollutants within the meaning of the Clean Air Act, EPA was required to determine whether they endanger health and welfare. EPA proposed its endangerment finding earlier this year. Last Monday’s action was the final step in making the endangerment finding, but the first step in regulating the emission of carbon dioxide and other greenhouse gases under the Clean Air Act. Watch this newsletter for further information about the implications of this finding, or call Steve O’Day, Phillip Hoover, or another member of SGR’s Environmental Section.