We investigate processes controlling interactions among pollutant emissions, regional air quality, global atmospheric composition, and climate, using chemistry-transport and chemistry-climate models alongside in situ and remotely sensed observations.

Air Pollution

We aim to quantify the sensitivity of ground-level ozone and particle pollution to precursor emissions and chemistry

Trends and Variability in Atmospheric Constituents

We are studying the processes that influence daily-to-decadal variability and long-term trends in key atmospheric species.

Chemistry-Climate Connections

We seek to understand factors controlling chemistry-climate interactions including the two-way couplings between air pollutants and climate.

Biosphere-Atmosphere Interactions

Our interests include interactions between vegetation and atmospheric chemistry, climate, and air pollution.