The year 2008 was the ninth warmest year since instrumental temperature measurements began in 1880. All of the nine warmest years have occurred in the past 11 years.
The new data is from NASA's Goddard Institute for Space Studies and other government agencies. It adds to the evidence scientists have been observing about a warming Earth as fossil fuel burning emits heat-trapping gases into the atmosphere.
Britain's Met Office, whose records go back to 1850, has confirmed these facts.
Also, the National Oceanic and Atmospheric Administration on Tuesday summarized these and other trends, including:
The 2008 Atlantic hurricane season was the third costliest, after 2005 and 2004.
The U.S. had nearly 1,700 tornadoes from January through November, which ranks second behind 2004 for the most tornadoes in a year since records began in 1953.
Arctic sea ice in 2008 reached its second lowest level at the end of the melting season in September, following a record low in 2007. Sea ice loss is important because ice reflects most of the sun's radiation, but open ocean water absorbs most of it, adding to the warming trend both in the ocean and on land.
Many will ignore or deny this evidence and these facts.
My duty is not to convince them against their will. My duty is to prevent them from achieving public office.
My duty is to put into place officials who believe in science. I applaud Barack Obama's choice of John Holdren as his science advisor.
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