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Thorne added that the conclusion that the earth is warming does not rest on a single type of data.

The 2010 report adds information on lake surfaces and permafrost temperatures for the first time, bringing the total number of climate indicators considered to 41. The report involved 368 researchers from 45 countries.

Other findings of the report:

_Alpine glaciers shrank for the 20th consecutive year.

_Even with a moderate-to-strong La Nina during the latter half of the year, which is associated with cooler equatorial waters in the tropical Pacific, the 2010 average global sea surface temperature was third warmest on record and sea level continued to rise.

_Oceans were saltier than average in areas of high evaporation and fresher than average in areas of high precipitation, suggesting that the water cycle is intensifying.

_A strong warm El Nino climate pattern at the beginning of 2010 transitioned to a cool La Nina by July, contributing to some unusual weather patterns around the world and impacting global regions in different ways.

_Tropical cyclone activity was below normal in nearly all basins around the globe, especially in much of the Pacific Ocean. The Atlantic basin was the exception, with near-record high North Atlantic basin hurricane activity.

_Heavy rains led to a record wet spring (September to November) in Australia, ending a decade-long drought.

_The Arctic Oscillation affected large parts of the Northern Hemisphere causing frigid arctic air to plunge southward and warm air to surge northward. Canada had its warmest year on record while Britain had its coldest winter at the beginning of the year and coldest December at the end of the year.

_An atmospheric pattern related to the strength and persistence of the storm track circling the Antarctic led to an all-time maximum in 2010 of average sea ice volume in the Antarctic.

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Online:

National Climatic Data Center: http://www.ncdc.noaa.gov

State of the Climatet: http://www.ncdc.noaa.gov/bams-state-of-the-climate