Letters: Jeffrey Gazzard (Letters, December 27) seems not to have appreciated the full sophistication of government climate policy which uses a carbon price of £70 a tonne of carbon, rather than the figure of £280 a tonne estimated by the Stern review, to be the cost of unabated climate change
Leo Hickman on how the Bali climate change talks showed us what it takes to make a grown UN official cry but not how to reach a global deal on achieving emissions cuts
US pours cold water on Bali optimism
· White House wants more from India and China · Future negotiations to achieve cuts made difficult
We've been suckered again by the US. So far the Bali deal is worse than Kyoto
George Monbiot
George Monbiot: America will keep on wrecking climate talks as long as those with vested interests in oil and gas fund its political system