The world's weatherman says this decade has very likely been the warmest in the historical record, and 2009 likely will end as one of the warmest years.
The World Meteorological Organization released the data in Copenhagen on the second day of a pivotal 192-nation climate conference, where delegates are working to craft a global deal to step up efforts to stem climate change.
Michel Jarraud, WMO secretary-general, says the decade 2000-2009 is "very likely" the warmest since record-keeping began in 1850, and 2009 is likely to be about the fifth-warmest year on record.
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