NASA Audio File

2009 Found to be Tied for Second Hottest Year on Record
Analysis of 2009 global temperature data undertaken by scientists at Goddard Institute for Space Studies (GISS) reveals that this year was tied with a cluster of other years --1998, 2002, 2003, 2006, and 2007 -- for the second warmest year on record. Over the last three decades, the GISS surface temperature record shows an upward trend of about 0.36°F per decade, with this past decade the warmest yet. Looking back to 1880, average global temperatures have increased by about 1.5°F.

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James Hansen
Director of NASA Goddard Institute for Space Studies, New York City

CUT 1 (:08): Hansen: “There are already beginning to be effects of 1 or 2 degrees warming and if we get 5 or 10 degree warming several decades downstream there will be huge effects.”
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CUT 2 (:16): Hansen: “If we want to limit climate change and keep it under an additional one degree Celsius or 2 degrees Fahrenheit, we would need to begin to decrease the CO2 emissions gradually so that by the end of the century CO2 stopped increasing.”
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