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Climate change

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{{wikipedia}}
 
'''Global warming''' refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. Global warming is accepted as the scientific consensus.
The global average air temperature near the Earth's surface rose 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the last 100 years. The Intergovernmental Panel on Climate Change (IPCC) concludes, "most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations"[http://en.wikipedia.org/wiki/Global_warming#_note-grida7] via the [[greenhouse effect]].
 
==Contrarian views==
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