Atmospheric Carbon Dioxide
http://www.globalwarmingart.com/wiki/File:Mauna_Loa_Carbon_Dioxide_png

Robert A. Rohde, (from published NOAA data)


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This figure, the famous Keeling Curve, shows the history of atmospheric carbon dioxide concentrations as directly measured at Mauna Loa, Hawaii. This curve is an essential piece of evidence that shows the increased greenhouse gases that cause recent increases in global temperatures.


Subject: Environmental Science:Global Change and Climate:Climate Change:Anthropogenic causes, Environmental Science:Global Change and Climate:Climate Change, Geoscience:Atmospheric Science:Climate Change:Anthropogenic causes, Geoscience:Atmospheric Science:Climate Change
Grade Level: Middle (6-8), High School (9-12), College Lower (13-14)
Theme: Teach the Earth:Course Topics:Environmental Science, Atmospheric Science, Teach the Earth:Incorporating Societal Issues:Climate Change