claim: The Keeling curve, which is widely used to show the increase in CO2 emissions, is based on data from the top of Mount Mauna Loa in Hawaii.
evidence: Charles David Keeling, of Scripps Institution of Oceanography at UC San Diego, was the first person to make frequent regular measurements of atmospheric CO 2 concentrations at the South Pole, and on Mauna Loa, Hawaii from March 1958 onwards.