Postdoctoral and Professional Researchers

Postdoctoral and Professional Researchers

Dr. Adam Amir


I am a filmmaker with an interdisciplinary background including philosophy, political ecology, science communication, and feminist methodologies. For my research I use collaborative methods, particularly "Folk Filmmaking", a form of participatory video production that helps local communities express their environmental values and concerns through storytelling. My work focuses on cross-cultural, moral debates over environmental issues and explores how collaborative filmmaking can help foster contextual, respectful adjudication. I conducted Folk Filmmaking projects in Nigeria, Cameroon, Kyrgyzstan, and Tajikistan, and shared the methods while assisting productions with the Hualapai and Navajo Nations. With the Spencer Lab I am working in the Congo River Basin and refining Folk Filmmaking as a method for communicating environmental issues through respectful, cross-cultural media production.
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Dr. Anne Kellerman


My research interests revolve around organic matter (particularly dissolved), its sources, sinks and factors that control both its degradation and persistence. I am interested in a variety of aspects of organic matter biogeochemistry: the detailed characterization of chemical composition and controls thereof, the link between chemical composition and reactivity, the importance of intrinsic and extrinsic controls on organic matter persistence and reactivity, and the pathways that protect organic matter from microbial degradation. I am also interested in how the methods we use to characterize organic matter influence our interpretation of how it exists in situ. Such methods include absorbance and fluorescence spectroscopy, size exclusion chromatography, and ultrahigh resolution mass spectrometry. My research questions often pertain to the effects anthropogenic activities have on organic matter characteristics, such as how land-use and climate change affect dissolved organic matter composition and the link between composition and reactivity. My biogeochemical interests sprouted in lakes but have spread to any watery ecosystem and even soils. Publications

Dr. David Podgorski


I am an analytical chemist with a unique background in the development and implementation of methods in the field of organic matter characterization. My research focuses on applying a diverse array of analytical methods to answer fundamental, hypothesis-driven questions in the fields of biogeochemistry and petroleomics. Core to my research program is the development of analytical methods aimed at unlocking the compositional and structural continuum of organic matter, particularly dissolved organic matter (DOM).