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[[Image:Rogerrevelle.jpg|thumb|right|200px|[[Roger Revelle]]]]
[[Image:Rogerrevelle.jpg|thumb|right|200px|[[Roger Revelle]]]]
'''Global warming''' is the increase of temperature since 1880. This increase in temperature is mainly caused by the increases in [[carbon dioxide]] and other [[greenhouse gas]]es. During the last century near surface tempertures rose about 0.8 K. The possibility of adverse consequences (especially: sea level rise, retreating of glaciers and water scarity) has become a major concern for environmentalists and some scientists.
'''Global warming''' is the increase of temperature since 1880. This increase in temperature is mainly caused by the increases in [[carbon dioxide]] and other [[greenhouse gas]]es. During the last century near surface tempertures rose about 0.8 K.<ref>[http://data.giss.nasa.gov/gistemp/2005/ GISS Surface Temperature Analysis 2005]</ref> The possibility of adverse consequences (especially: sea level rise, retreating of glaciers and water scarity) has become a major concern for environmentalists and some scientists.
According to geologists, the Earth has experience numerous [[ice age]]s during which the temperature dropped so far that [[glacier]]s could cover [[North America]] and [[Europe]].
According to geologists, the Earth has experience numerous [[ice age]]s during which the temperature dropped so far that [[glacier]]s could cover [[North America]] and [[Europe]].
*[http://www.ipcc.ch Intergovernmental Panel on Climate Change (IPCC)]
*[http://www.ipcc.ch Intergovernmental Panel on Climate Change (IPCC)]
*[http://www.aip.org/history/climate/ The Discovery of Global Warming]
*[http://www.aip.org/history/climate/ The Discovery of Global Warming]
==References==
<references />
[[category:earth science]]
[[category:earth science]]