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Forest emissions, wildfires explain why ancient Earth was so hot
Date:2/5/2014

esting that these compounds would have had limited impact since they would have been washed from the atmosphere by frequent rainfall in the warmer climate. The new study argues otherwise, saying that the particles lingered about the same length of time one to two weeks in the Pliocene atmosphere compared to the pre-industrial.

Unger says her findings imply a higher climate sensitivity than if the system was simply affected by CO2 levels and the albedo effect.

"We might do a lot of work to reduce air pollution from road vehicle and industrial emissions, but in a warmer future world the natural ecosystems are just going to bring the ozone and aerosol particles right back," she said. "Reducing and preventing the accumulation of fossil-fuel CO2 is the only way to ensure a safe climate future now."

The modeling calculations were performed on Yale University's omega supercomputer, a 704-node cluster capable of processing more than 52 trillion calculations per second.


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Contact: Kevin Dennehy
kevin.dennehy@yale.edu
203-436-4842
Yale School of Forestry & Environmental Studies
Source:Eurekalert  

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