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Climate Change Fact Sheet
The document outlines Dr. James E. Hansen's testimony on climate change, highlighting that the United States is the largest source of CO2 emissions and that current 'Business-as-Usual' trends could lead to at least 5°C of warming by 2100. It warns of non-linear ice sheet disintegration in Greenland and West Antarctica, potentially causing sea level rises of 25±10 meters if warming reaches 2-3°C. Hansen argues that abrupt climate changes are practically certain under current emission trends, but an 'Alternative Scenario' could keep warming below 1°C if CO2 emissions are moderately reduced by mid-century and peak by 2100.
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Document type: Fact sheet