SCIENCE INITIATIVE HARIPAD KERALA INDIA

Carbon dioxide reaches landmark high


Climate instruments at Mauna Loa, Hawaii last week recorded daily carbon dioxide levels above 400 parts per million for the first time since the measurements began in 1958.Both the Scripps Institution of Oceanography and the National Oceanic and Atmospheric Administration detected the record levels at parallel monitoring systems they maintain at Mauna Loa.The recordings follow a trend of escalating carbon dioxide concentrations that scientists have observed for more than a half century. It's dubbed the "Keeling Curve" for Scripps scientist David Keeling, who began measuring the gas levels in Hawaii.The spike recorded last week doesn’t mark a breaking point for climate systems, but rather a warning sign about the long-term trend, said Scripps geochemistry professor Ralph Keeling, who took over the Mauna Loa station after his father died in 2005.Continue

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