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US Climate Change Science Program provides key contributions to IPCC fourth assessment

Research conducted by scientists funded through the U.S. Climate Change Science Program (CCSP) has helped resolve key uncertainties about the causes of global climate change and has helped refine projected future changes in temperature and sea-level rise, as published in the Working Group I contribution to the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report, the summary of which was issued Feb. 2, 2007.

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