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→The Modern Warm Period: study
In February, 2007, the [[IPCC|Intergovernmental Panel on Climate Change]], whose members were appointed by their governments, released their fourth assessment report on climate change. That report concluded that most of recent global warming was "very likely" caused by human activity<ref>http://news.bbc.co.uk/2/hi/science/nature/6321351.stm</ref>. It says that increases in atmospheric concentrations of [[greenhouse gas]]es cause warming. Several members of this panel later complained their contributions were misrepresented in the final report.
In February, 2007, the [[IPCC|Intergovernmental Panel on Climate Change]], whose members were appointed by their governments, released their fourth assessment report on climate change. That report concluded that most of recent global warming was "very likely" caused by human activity<ref>http://news.bbc.co.uk/2/hi/science/nature/6321351.stm</ref>. It says that increases in atmospheric concentrations of [[greenhouse gas]]es cause warming. Several members of this panel later complained their contributions were misrepresented in the final report.
In 2008, a study revealed that the worlds glaciers had shrunk an average of 4.9 feet in 2006, compared to an average of one foot a year from 1980 to 1999.<ref>[http://www.cnn.com/2008/WORLD/weather/03/16/un.climate.ap/index.html?iref=mpstoryview Glaciers shrinking at record rate]</ref>
===IPCC controversy===
===IPCC controversy===