(plaintiff seeks review of defendant's finding that gases blamed for "global warming" threaten public health; petition challenges defendant's endangerment finding issued in late 2009 which attempts to regulate carbon dioxide and other heat-trapping gasses as "pollutants" under the Clean Air Act; plaintiff claims that defendant improperly relied on conclusions of groups including the United Nations International Panel on Climate Change which have now been disclosed to be erroneous and that defendant failed to demonstrate that ensuing rules would improve existing conditions).