Policy Documents

NIPCC IR1 - Chapter 5 - Extreme Weather

August 29, 2011

Chapter 5 compares observations concerning extreme weather, such as floods, drought, storms, and hurricanes, to projections made by the IPCC. Researchers have found extreme and destructive rainfall events were more common in many parts of the world during the Little Ice Age than they have been subsequently, contradicting the forecasts of the IPCC. Regional climate models of North America generate predictions that vary considerably among models and extend well beyond the realm of reality. Similarly, the frequency and severity of floods, droughts and hurricanes all appear to be determined by natural processes other than anthropogenic climate change