7 Numbers Related to Climate Change
♦ A 2010 article examines the 908 active researchers with at least 20 climate publications on Google Scholar. 97.5% of them have stated that it is “very likely” that human-caused emissions are responsible for “most” of the “unequivocal” warming of the Earth in the second half of the 20th century.
♦ Global surface temperatures have been recorded since 1850. According to the 2007 report from the Intergovernmental Panel on Climate Change, 11 of the 12 years between 1995-2006 are one of the hottest 12 years recorded.
♦ The world’s ocean ice cover has decreased by 40% since the 1960s.
♦ According to observation data collected at Mauna Loa Observatory in Hawaii, atmospheric CO2 levels increased 22.6% from 1959 (when observation began) to 2009.
♦ In 1850 there were approximately 150 glaciers present in Glacier National Park. Only 25 are present today.
♦ From 1850 to 2004, the volume of glaciers in the European Alps decreased by 50%.
♦ Atmospheric levels of methane (a greenhouse gas) have increased by 151% since 1750.
♦ A 2010 article examines the 908 active researchers with at least 20 climate publications on Google Scholar. 97.5% of them have stated that it is “very likely” that human-caused emissions are responsible for “most” of the “unequivocal” warming of the Earth in the second half of the 20th century.
♦ Global surface temperatures have been recorded since 1850. According to the 2007 report from the Intergovernmental Panel on Climate Change, 11 of the 12 years between 1995-2006 are one of the hottest 12 years recorded.
♦ The world’s ocean ice cover has decreased by 40% since the 1960s.
♦ According to observation data collected at Mauna Loa Observatory in Hawaii, atmospheric CO2 levels increased 22.6% from 1959 (when observation began) to 2009.
♦ In 1850 there were approximately 150 glaciers present in Glacier National Park. Only 25 are present today.
♦ From 1850 to 2004, the volume of glaciers in the European Alps decreased by 50%.
♦ Atmospheric levels of methane (a greenhouse gas) have increased by 151% since 1750.
Source: Clark, D. J. (2013). Climate Change and Conceptual Change. (Doctoral dissertation, University of California, Berkeley.)
Disclaimer: Data may have changed since it was compiled several years ago.
Disclaimer: Data may have changed since it was compiled several years ago.
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