- States emissions of air pollutants and their precursors determine regional air quality and can alter climate
- States climate change can perturb the long-range transport, chemical processing, and local meteorology that influence air pollution
- Reviews the implications of projected changes in methane (CH(4)), ozone precursors (O(3)), and aerosols for climate (expressed in terms of the radiative forcing metric or changes in global surface temperature) and hemispheric-to-continental scale air quality
- States reducing the O(3) precursor CH(4) would slow near-term warming by decreasing both CH(4) and tropospheric O(3)
- States uncertainty remains as to the net climate forcing from anthropogenic nitrogen oxide (NO(x)) emissions, which increase tropospheric O(3) (warming) but also increase aerosols and decrease CH(4) (both cooling)
- States anthropogenic emissions of carbon monoxide (CO) and non-CH(4) volatile organic compounds (NMVOC) warm by increasing both O(3) and CH(4)
- States that reducing sulfate and nitrate aerosols would improve air quality and lessen interference with the hydrologic cycle, but lead to warming
- States that modeling and observational analyses suggest a warming climate degrades air quality (increasing surface O(3) and particulate matter) in many populated regions, including during pollution episodes
Related Content
Science Source
Feb 12, 2021 | Science Advances
Aircraft observations since the 1990s reveal increases of tropospheric ozone at multiple locations across the Northern Hemisphere
Science Source
Feb 11, 2021 | Current Pollution Reports
Meteorology and Climate Influences on Tropospheric Ozone: a Review of Natural Sources, Chemistry, and Transport Patterns
Science Source
Feb 11, 2021 | Journal of Applied Meteorology and Climatology
Global Warming Will Aggravate Ozone Pollution in the U.S. Mid-Atlantic
Science Source
Feb 27, 2019 | Nature Climate Change
Positive but variable sensitivity of August surface ozone to large-scale warming in the southeast United States
