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Joanna Casey is generally curious and enjoys learning about our planet’s atmosphere and its interfaces with human exploits. She is interested in air on scales ranging from the small volumes of molecules enclosed by the walls of our homes, to community and regional scale airsheds, on up to the global scale atmosphere and how its constituents interact with the earth system. As a PhD student, she utilized emerging low-cost sensor technology to characterize the spatial variability of some atmospheric trace gases in oil and gas production basins, and to investigate how heating fuel type can impact indoor air quality on the Navajo Nation. Joanna relishes clean mountain air, soft snow, deep blue desert skies, the wild flowers alongside the trail, and following the flow of rivers.