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Linking ozone pollution and climate change: The case for controlling methane
Methane (CH4) emission controls are found to be a powerful lever for reducing both global warming and air pollution via decreases in background tropospheric ozone (O3). Reducing anthropogenic CH4 emissions by 50% nearly halves the incidence of U.S. high-O3 events and lowers global radiative forcing by 0.37 W m−2 (0.30 W m−2 from CH4, 0.07 W m−2 from O3) in a 3-D model of tropospheric chemistry. A 2030 simulation based upon IPCC A1 emissions projections shows a longer and more intense U.S. O3 pollution season despite domestic emission reductions, indicating that intercontinental transport and a rising O3 background should be considered when setting air quality goals
Linking ozone pollution and climate change: The case for controlling methane,
[1] Methane (CH 4 ) emission controls are found to be a powerful lever for reducing both global warming and air pollution via decreases in background tropospheric ozone (O