On April 2, the Supreme Court ruled that the Environmental Protection Agency has authority under the Clean Air Act to regulate emissions of carbon dioxide, one of the “greenhouse gases” linked to global climate change. Some journalists and talking heads wrongly construed this as a requirement that the EPA regulate CO2 emissions.
Last week in Washington, D.C., Congress began debate over global warming legislation that would override state laws, including California's new measure to lower emissions to 1990 levels by the year 2020. This debate, and all others over global warming, should reference a recent exchange on the subject.
