Gautam Naik
Source: The Wall Street Journal
July 29, 2010

A new assessment concludes that the Earth has been getting warmer over the past 50 years and the past decade was the warmest on record.

The State of the Climate 2009 report, published Wednesday as a special supplement to the Bulletin of the American Meteorological Society, was compiled by 300 scientists from 48 countries and drew on measures of 10 crucial climate indicators.

Seven of the indicators were rising, including air temperature over land, sea-surface temperature, sea level, ocean heat and humidity. Three indicators were declining, including Arctic sea ice, glaciers and spring snow cover in the Northern Hemisphere.

"Each indicator is changing as we'd expect in a warming world," said Peter Thorne, senior researcher at the Cooperative Institute for Climate and Satellites, a research consortium based in College Park, Md., who was involved in compiling the report.

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