Global average temperature

<p>2011 Degrees of Risk_Defining a Risk Management Framework for Climate Security_Full Report

At 0.62°C above the 20th century global

average surface temperature, 2010 tied with 2005 as the warmest single year on the 131-

year thermometer record. 2010 was the 34th consecutive year that was warmer than the 20th

century average; and the nine warmest years on record all occured in the last ten years (2001-

2010).303 The years 2000-2009 constitute the warmest decade on record, with the 1990s

the second warmest and the 1980s the third warmest.304</p>

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Source: Trenberth, et al., 2007.</p>