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2000-2009 'warmest-ever' decade

New research from the World Meteorological Organization (WMO) suggests that the past decade has been the warmest ever recorded, with 2009 to be confirmed as one of the 10 warmest years ever recorded.

The global combined sea surface and land surface air temperature for January–October 2009 is estimated to be 0.44°C ± 0.11°C above the 1961–1990 annual average of 14.00°C. This would make 2009 the fifth warmest year on record.

WMO data suggests that the first decade of the new century was warmer than the decade spanning the 1990s , which in turn was warmer than the 1980s.

According to scientific measurements, Arctic sea ice has declined dramatically over the past 30 years.

Arctic sea ice extent during the 2009 melt season was 5.10M km2, which is the third-lowest on record after the 2007 record (4.3M km2) and 2008 (4.67M km2), since satellite measurements began in 1979.

Readers' comments (3)

  • Why on earth has NCE gone with the phrase 'warmest-ever' in the title of this article?

    Nothing in the article itself refers to 'warmest-ever'. WMO have not said 'warmest-ever' for good reason - the only thing they can say with certainty is what they have said: that it is the warmest on record.

    NCE readers understand the difference between "ever" and "on record". Please don't try and mislead us with sensationalist headlines.

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  • What is needed in this article is when the records actually began - according to BBC News the records started 160 years ago.

    With that information people can make a judgement as to whether they think the fact that this is the warmest decade on record is significant or not .

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  • 10 years is hardly a large time scale geologically speaking, its meaninless really. I'm still undecided on the global warming debate partly due to headlines and stories like this which mean little really in the great scheme of things. If they said temperatures have been rising decade on decade for the last hundred years then maybe that would mean something, but they can't because they haven't.

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