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Observing CO2 Effects at Earth’s Surface

Source:  Dan Feldman, Bill Collins and Margaret Torn

ESD climate scientists Dan Feldman, Bill Collins (ESD Climate Sciences Department Head) and Margaret Torn (ESD Atmospheric System Research Program Head) were part of a team that recently observed carbon dioxide’s greenhouse effect at the Earth’s surface for the first time. Their work, which was published this week (February 25, 2015) in the advance online publication of the journal Nature, focused on measuring atmospheric carbon dioxide’s increasing capacity to absorb thermal radiation emitted from the Earth’s surface, over an eleven-year period at two locations in North America. The scientists attributed this upward trend to rising CO2 levels from fossil fuel emissions. Feldman_collins_torn_acrossTo read more, go to: 

To read San Francisco Chronicle science writer David Perlman's related story, go here »

Citation:  Feldman, D.R., W.D. Collins, P.J. Gero, M.S. Torn, E.J. Mlawer, and T.R. Shippert (2015), Observational determination of surface radiative forcing by CO2 from 2000 to 2010.  Nature, DOI: 10.1038/nature14240.

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