California (+ other states) Lawsuit against EPA "Interview with California Attorney General, Bill Lockyer, on Suit against EPA," Radio Nation, (10 June 2006)
You may want to consider this decision to rule on the "pollutant" status of carbon dioxide in the context of the Competitive Enterprise Insitute's recent Ad Campaign Carbon Dioxide 1 Carbon Dioxide 2 and the Supreme Court's decision to decide on carbon dioxide as a pollutant.