Josh is a physical chemist who obtained a bachelors degree from the University of Wisconsin-Madison and an MPhil from the University of Cambridge on a Churchill Scholarship. Since formaldehyde is a prime tracer of oxidative chemistry in the atmosphere and is thus used by models to constrain oxidative processes, Josh utilizes laser-induced fluorescence spectroscopy to measure formaldehyde emissions in a variety of environments. In July 2016, he participated in the PROPHET 2016 campaign (in northern Michigan) measuring formaldehyde gradients within the forest canopy, and in Spring 2017, he sailed through the Southern Ocean to measure formaldehyde along the coast of Antarctica.
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