We are an atmospheric chemistry research group in the Department of Environmental Sciences at the University of Virginia with interests in air quality, chemistry-climate feedbacks, atmosphere-biosphere interactions, and environmental justice. We collect measurements at the Earth’s surface and from onboard aircraft, ships, and unmanned aerial vehicles in cities, agricultural areas, coasts, the open ocean, and within forest canopies. We also conduct studies in the lab on plant-atmosphere exchange and interpret the wealth of long-term satellite and ground-based monitoring observations. We work to find solutions to atmospheric problems that adversely affect human health and ecosystems.