climate sensitivity

New research suggests higher transient climate sensitivity

A new paper in Nature Geoscience finds that “transient climate sensitivity,” the fast temperature rise that accompanies increases in atmospheric CO2, may be much higher than previously thought. The reason is widespread sulfate pollution from man-made and natural sources, which has tempered the warming that the world would otherwise be seeing at current levels of atmospheric CO2. This conclusion is based on research funded by YCEI and led by Yale atmospheric scientist Trude Storelvmo. Prior studies that did not fully account for the cooling influence of airborne particles …

The Use of Econometric Methods to Disentangle Greenhouse Warning and Aerosol Cooling in Observations and Climate Models

We apply econometric methods to climate observations in order to disentangle the contribution to modern climate change from greenhouse gases and aerosols, both constituents of the atmosphere which been increasing in concentrations in response to industrial activity. Our preliminary results suggest a substantial masking of the greenhouse warming due to the compensating cooling effect that anthropogenic aerosols have on the Earth-atmosphere system.

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