(Sarah of the Clue Crew reports from a beach UC San Diego's Scripps Institution of Oceanography.)  In 1958, Scripps scientist Charles Keeling began using flasks to measure this gas in the atmosphere; the "Keeling curve" is a symbol of climate change
[DOC] [TLE] Keeling Curve - American Chemical Society [PAR] The Keeling Curve: Carbon Dioxide Measurements at Mauna Loa ... Charles 
David Keeling of Scripps Institution of Oceanography was the ...