. "Finding that manmade pollutionthe release of carbon dioxide, chlorofluorocarbons, methane, and other trace gases into the atmospheremay be producing a long-term and substantial increase in the average temperature on Earth, 1102(1), 101 Stat. 1408 , Congress directed EPA to propose to Congress a coordinated national policy on global climate change, 1103(b), and ordered the Secretary of State to" . . .