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Proving global warming
A world of evidence says global warming is real
So far, the effects of global warming have been slight, but computer models predict they will accelerate and worsen in coming decades.
Sources: Carbon Cycle Greenhouse Gases Group, Hadley Centre for Climate Prediction and Research, Intergovernmental Panel on Climate Change, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1900-2003, NASA Goddard Institute for Space Studies, NOAA Climate Monitoring and Diagnostics Laboratory (CMDL), NOAA National Climatic Data Center, NOAA Paleoclimatology Program, Northwest Weather and Avalanche Center, Scripps Institution of Oceanography, University of Washington, University of Zurich, U.S. Environmental Protection Agency, U.S. Geological Survey, World Glacier Monitoring Service
Research by SANDI DOUGHTON, KRISTOPHER LEE and WHITNEY STENSRUD;