Currently, tropospheric ozone (O3) is the third most important greenhouse gas after carbon dioxide (CO2) and methane (CH4). It is a product of photochemistry, and its future abundance is controlled primarily by emissions of CH4, carbon monoxide (CO), nitrogen oxides (NOx), and volatile organic compounds (VOC). There is now greater confidence in the model assessment of the increase in tropospheric O3 since the pre-industrial period, which amounts to 30% when globally averaged, as well as the response to future emissions. For scenarios in which the CH4 abundance doubles and anthropogenic CO and NOx emissions triple, the tropospheric O3 abundance is predicted to increase by an additional 50% above today’s abundance. For more Click Here.
Photo courtesy of http://phys-sci.colorado.edu |
Courtesy: http://www.grida.no/climate
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