Academic Commons

Articles

Linking ozone pollution and climate change: The case for controlling methane

Fiore, Arlene M.; Jacob, Daniel J.; Field, Brendan D.; Streets, David G.; Fernandes, Suneeta D.; Jang, Carey

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.

Files

  • thumnail for Fiore_et_al-2002-Geophysical_Research_Letters.pdf Fiore_et_al-2002-Geophysical_Research_Letters.pdf application/pdf 101 KB Download File

Also Published In

Title
Geophysical Research Letters
DOI
https://doi.org/10.1029/2002GL015601

More About This Work

Academic Units
Earth and Environmental Sciences
Lamont-Doherty Earth Observatory
Publisher
American Geophysical Union
Published Here
November 19, 2015
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.