Global average temperature rose significantly during the past century.
The prevailing scientific view is that most of the temperature increases
since mid-20th century has been caused by increases in atmospheric
greenhouse gas concentrations produced by human activity. Most
scientists agree that planet’s temperature has risen 0.5 degree Celsius
since 1900 and will continue to increase at an increasing rate. As a
result, the world is getting warmer. The year 1990 was the hottest year
in the last century.
Friday, September 20, 2013
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