From the New York Times:
Scientists from across the world gathered here today to hammer out the final details of an authoritative report on climate change that is expected to project centuries of rising temperatures and sea levels unless curbs are placed on emissions of carbon dioxide and other gases that trap heat in the atmosphere.
According to scientists involved with writing or reviewing the report, the fourth since 1990 from the Intergovernmental Panel on Climate Change, a body overseen by the United Nations, it is nearly certain to conclude that there is at least a 90 percent probability that human-caused emissions are the main driver of warming since 1950.
The report, according to several authors, who spoke only on condition of anonymity saying that details could still change, will describe a growing body of evidence showing that warming is likely to profoundly transform the planet.
Three large sections of the report will be forthcoming during the year, with the summary for policymakers and sections on basic climate science coming on Friday.
Among findings in recent drafts are that the Arctic Ocean could largely be devoid of sea ice in summers later in the century; the Alps could shift from snowy winter destinations to summer havens from the heat; growing seasons in temperate regions will expand, while droughts will likely further ravage semi-arid regions of Africa and southern Asia.
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