National Academy of Sciences urges swift U.S. action to curb emissions Obama to set up oil spill panel Oil spill could be among worst ever House Republicans offer bill to keep climate out of NEPA reviews Arctic team reports unusual conditions near Pole
The big question: How much CO2 can the Earth hold?
'Green city' builders facing technological, financial hurdles
Troubled Senate emissions bill to undergo EPA analysis
Oil spill in Gulf of Mexico ‘could be worse than Exxon Valdez disaster’
Russia and Norway strike Arctic sea border deal
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