In November, the issue of EPA's refusal to regulate greenhouse gas emissions went before the Supreme Court. Yesterday, the decision (PDF) was announced -- 5-4 in favor of Massachusetts, meaning that the EPA does have the authority and responsibility to regulate carbon dioxide as a pollutant. In short, the time to act is now!

In the chutzpah department, EPA actually tried to argue that 1) "any EPA regulation of motor-vehicle emission" was a "piecemeal approach to climate change that would conflict with the President's comprehensive [!] approach" -- comprehensive, I suppose, in the sense that he refuses to take any substantive action in every sector, and 2) such regulation "might hamper the President's ability to persuade key developing nations to reduce emissions" -- a particularly amazing argument, since the president has been working hard behind the scenes to persuade key developing nations not to reduce emissions. Justice Stevens, writing for the majority, made short work of those absurd arguments.