Our research explores how the biogeochemical cycling of carbon, nitrogen, and water is influenced by climate, rising levels of atmospheric CO2, and nutrient availability. Our work ranges from the scale of microorganisms to the whole ecosystem, permitting us to study within a wide range of disciplines, including microbial ecology, ecophysiology, and soil science. We examine the biosphere-atmosphere fluxes of CO2, N2O, and water, the stable isotopes within these compounds, and the mechanisms in soils and vegetation that govern these fluxes. Sharon Billings lab web