NRC: The greenhouse effect is natural and essential to keeping the Earth’s surface warm. Human activities — especially burning fossil fuels — are amplifying the effect. [For fact checking & general commentary]

January 2, 2014 10:28 am2 comments

POSTED FOR COMMENTARY BY THE CCNF SCIENTIST COMMUNITY:

Source: Marian Koshland Science Museum of the National Academy of Sciences.

Source: Marian Koshland Science Museum of the National Academy of Science

“The greenhouse effect is a natural phenomenon that is essential to keeping the Earth’s surface warm. Like a greenhouse window, greenhouse gases allow sunlight to enter and then prevent heat from leaving the atmosphere. These gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor. Human activities — especially burning fossil fuels — are increasing the concentrations of many of these gases, amplifying the natural greenhouse effect.”

http://nas-sites.org/americasclimatechoices/more-resources-on-climate-change/climate-change-lines-of-evidence-booklet/evidence-impacts-and-choices-figure-gallery/figure-3/

Source:  “Climate Change: Lines of Evidence,” by the National Research Council of the National Academies, Jun 27, 2012.

 

 

 

 

 

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