Climate Change 2007, Volume 1: The Physical Science Basis

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The Working Group I report was subject to final approval at the 10th Working Group I Session held in Paris from January 29 to February 1, 2007. The approved Summary for Policymakers (text, tables and figures) was released at a press conference in Paris on February 2, 2007.

Climate Change 2007: The Physical Science Basis is the most comprehensive and up-to-date scientific assessment of past, present and future climate change. This report has been produced by some 600 authors from 40 countries, over 620 experts and a large number of government reviewers. Providing insights into the effects of human activity on the atmosphere, and containing an evaluation of observed climatic changes using the latest measurement techniques, the report also includes a detailed review of climate change observations and modeling for every continent as well as the first probabilistic evaluation of climate model simulations.