The White House energy and climate adviser is due to step down in the next few weeks, a departure seen as a collapse.
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/ 15 December 2010
China, cast as the wrecker of the UN climate negotiations last year, went some way towards rehabilitation.
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/ 18 November 2010
Magnificent and wild, the grizzly bear of the American West has a fearsome reputation.
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/ 29 October 2010
It looked like a pretty ordinary day on the water at the United States naval base in Norfolk, Virginia.
The US president gets tough over the oil spill crisis but still faces mounting criticism.
Industry bosses round on one another as senators turn up the heat.
The Obama administration has taken defensive action over early assurances that a sunken BP rig was not leaking crude oil into the Gulf of Mexico.
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/ 27 November 2009
Deniers use hacked email extracts to deride global warming data.
New fuel regulations will force carmakers to produce vehicles that get an average of 11.5kpl — more than required by the cash-for-clunkers programme
The American stimulus package includes a great global experiment — to see whether such unprecedented spending can also tackle climate change.