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Keeling's son ponders a sobering milestone
2013-05-16 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Yale Environment 360: When the history of humanitys struggle to combat climate change is written, few characters will play as prominent a role as Charles David Keeling. A geochemist, Keeling developed an accurate method of measuring CO2 in the atmosphere, and in 1958 began recording background levels of the gas at the Mauna Loa Observatory in Hawaii. That was the start of the famous Keeling Curve, which has tracked the steady rise of atmospheric carbon dioxide. Those levels have soared from 315 parts per million when...
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