Journal Article10.1260/095830507781076194
Climate Change 2007: The Physical Science Basis Summary for Policymakers:
Abstract: The Working Group I contribution to the IPCC Fourth Assessment Report describes progress in understanding of the
human and natural drivers of climate change1, observed climate change, climate processes and attribution, and
estimates of projected future climate change. It builds upon past IPCC assessments and incorporates new findings from the past six years of research. Scientific progress since the TAR is based upon large amounts of new and more
comprehensive data, more sophisticated analyses of data, improvements in understanding of processes and their
simulation in models, and more extensive exploration of uncertainty ranges.
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