claim: In 1990 the United Nation’s Intergovernmental Panel on Climate Change ( IPCC ) predicted that temperatures would rise by 0.54F ( 0.3C ) per decade.
evidence: Models referenced by the Intergovernmental Panel on Climate Change ( IPCC ) predict that global temperatures are likely to increase by 1.1 to 6.4 °C ( 2.0 to 11.5 °F ) between 1990 and 2100.