Tuesday, December 22, 2009

Study: CFCs, cosmic rays major culprits for global warming

WATERLOO, Ont. (Monday, Dec. 21, 2009) - Cosmic rays and chlorofluorocarbons (CFCs), both already implicated in depleting the Earth's ozone layer, are also responsible for changes in the global climate, a University of Waterloo scientist reports in a new peer-reviewed paper.  In his paper, Qing-Bin Lu, a professor of physics and astronomy, shows how CFCs - compounds once widely used as refrigerants - and cosmic rays - energy particles originating in outer space - are mostly to blame for climate change, rather than carbon dioxide (CO2) emissions. His paper, derived from observations of satellite, ground-based and balloon measurements as well as an innovative use of an established mechanism, was published online in the prestigious journal Physics Reports. Press release here. 
The paper, published Dec. 3 in Physics Reports, is available online at: dx.doi.org/10.1016/j.physrep.2009.12.002.

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