UN climate chief: US carbon cuts could spark 'revolution' | Environment | The Guardian

Speaking on the fringes of a high-level scientific conference on climate change in Copenhagen, Pachauri told the Guardian: "He [Obama] is not going to say by 2020 I'm going to reduce emissions by 30%. He'll have a revolution on his hands. He has to do it step by step."

Pachauri's remarks echo those of Todd Stern, the US president's new chief climate negotiator, who said last week that it was "not possible" for the US to aim for 25-40% cuts by 2020.
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Pachauri told the Guardian the US needed to do more in the short term. But he questioned whether there would be sufficient domestic movement for the US to agree stricter targets in December. He said it was "hard to say" if a new deal would be meaningful without such a step.

Dang it: Earth-cooling fix could cut solar power production | Climate Change

Seeding the upper atmosphere with particles could help curb climate change, but it could also have the unwanted effect of cutting solar energy production by as much as one-fifth, according to a new study from the US National Oceanic and Atmospheric Administration.