RT Report T1 Climate Change 2007: The Physical Science Basis - Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change A1 United Nations Environment Programme, A2 Solomon, S. A2 Qin, D. A2 Manning, M. K1 climate change K1 environmental science K1 atmosphere K1 radiation effect K1 sea level K1 ocean K1 biogeochemistry K1 Adaptation K1 Climate Finance K1 Mitigation SN 978-0-521-88009-1 YR 2007 FD 2007 LK https://wedocs.unep.org/handle/20.500.11822/30761 UL https://wedocs.unep.org/handle/20.500.11822/30761 NO The Working Group I report focuses on those aspects of the current understanding of the physical science of climate change that are judged to be most relevant to policymakers. It does not attempt to review the evolution of scientific understanding or to cover all of climate science. Furthermore, this assessment is based on the relevant scientific literature available to the authors in mid-2006 and the reader should recognize that some topics covered here may be subject to further rapid development. DS UN Environment Document Repository RD Sep 20, 2026