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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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Tom Wigley, and Christopher Green questioned the relevance of the reference emissions scenarios that the IPCC used in the Fourth Assessment Report to underpin estimates of future warming trends. ºF) above pre-industrial levels as well as the long-term stabilization of greenhouse gases at a 350 ppm CO2 equivalent. ºC in 2020, and 2.3

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