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Fri 21 Jan 2011 02:32 PM

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2010 matches record for world's hottest year — WMO

First 10 years of millennium have proved to be hottest decade on record, UN body said

2010 matches record for world's hottest year — WMO
RECORD TEMPERATURE: Last year was the hottest in a decade and has confirmed the Earths significant long term warming trend

Last year tied for the hottest year on record, confirming a long term warming trend, the World Meteorological Organization (WMO) has said.

The first 10 years of the millennium have proved to be the hottest decade since climate records began, it said.

"Data received by the WMO show no statistically significant difference between global temperatures in 2010, 2005 and 1998," the United Nations body, which compiles its ranking from data provided by British and US agencies, said in a statement.

Data from British institutes on Wednesday showed last year was the world's second warmest behind 1998, while the other two main groups worldwide tracking global warming, based in the US, said 2010 was tied for the hottest on record.

Over the 10 years from 2001 to 2010, global temperatures have averaged 0.45 degrees Celsius (0.83 degrees Fahrenheit) above the 1961-1990 average and are the highest ever recorded for a 10-year period since climate records began, WMO said.

"The 2010 data confirm the Earth's significant long-term warming trend," said WMO Secretary-General Michel Jarraud. "The 10 warmest years on record have all occurred since 1998."

The difference between the three hottest years was less than the margin of uncertainty in comparing the data, according to WMO, whose assessment is based on climate data from land-based weather and climate stations, ships, buoys and satellites.

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