The earth’s atmospheric composition is experiencing a perturbation unprecedented in the Holocene. Various human activities, including large-scale deforestation, fossil fuel harvesting and combustion, and industrial scale crop fertilization have tremendously upset the planet’s carbon and nitrogen cycles and led to large increases in the atmospheric abundance of greenhouse gases. These changes are ongoing and dynamic. Anthropogenic greenhouse gas emissions are undergoing rapid alterations in response to technological, economic, and regulatory pressures. Natural greenhouse gas sources and sinks are dynamically responding to the warming environment, with unknown feedbacks and consequences. Prof. Kort's research is focused on quantifying and attributing contemporary greenhouse gas fluxes, and improving our understanding of processes driving changes in these fluxes. This information is crucial for understanding the current and future state of earth’s climate, and for informing societal responses and mitigation efforts. Prof. Kort's group employs an end-to-end approach, founded on atmospheric observations and involving novel modeling and analysis techniques to quantify, attribute, and understand the processes driving these changes.