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Atop A Hawaiian Mountain, A Constant Sniff For Carbon Dioxide

03:43
Researchers use the 120-foot tower atop Mauna Loa in Hawaii to collect air samples and measure the amount of carbon dioxide in the atmosphere. Mauna Kea looms in the distance. (forrestmims.org)
Researchers use the 120-foot tower atop Mauna Loa in Hawaii to collect air samples and measure the amount of carbon dioxide in the atmosphere. Mauna Kea looms in the distance. (forrestmims.org)

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