Aerosols, Clouds, and Climate
Aerosol–cloud interactions are the most uncertain part of future climate forcing. We analyze observations and develop and evaluate atmospheric models to study two critical regions: the Arctic and Southeast Atlantic ocean.
Air Quality and Health
PM2.5 is the main air pollutant affecting health worldwide. We combine satellite retrievals and chemical transport modeling to improve its prediction and evaluate how wildfire smoke shapes compliance with U.S. standards.
Consequences of Climate Intervention
Atmospheric chemistry is critical to both the efficacy and the risks of climate intervention. We assess atmospheric methane removal and marine cloud brightening, from air pollution and stratospheric ozone to precipitation and mercury deposition.
Image credits: Arctic sea ice and ship tracks, NASA (public domain). New York City wildfire smoke, photo by Anthony Quintano, CC BY 2.0.