NASA releases global warming map

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NASA releases global warming map
mongabay.com
December 15, 2010

NASA has released a new analysis of temperature change.

The map shows temperature anomalies for 2000-2009 and 1970-1979 relative to a 1951-1980 baseline.

To conduct the analysis, NASA's Goddard Institute for Space Studies (GISS) uses "publicly available data from 6,300 meteorological stations around the world; ship-based and satellite observations of sea surface temperature; and Antarctic research station measurements."

"These three data sets are loaded into a computer analysis program—available for public download from the GISS web site—that calculates trends in temperature anomalies relative to the average temperature for the same month during 1951-1980," according to NASA.

1970-1979
nasa global warming map

2000-2009
nasa's climate change map

NASA images by Robert Simmon, based on data from the Goddard Institute for Space Studies.

The space agency reports that the average global temperature has increased by about 0.8° Celsius (1.4° Fahrenheit) since 1880. About two-thirds of the warming has occurred since 1975, at a rate of roughly 0.15-0.20°C per decade.

"The world is getting warmer," stated NASA on its Earth Observatory site. "Whether the cause is human activity or natural variability, thermometer readings all around the world have risen steadily since the beginning of the Industrial Revolution."

CITATION:
mongabay.com (December 15, 2010). NASA releases global warming map. http://news.mongabay.com/2010/1214-nasa_global_warming_map.html

Tags:
climate change remote sensing green environment nasa Photos temperatures

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