John Harte is a professor in the Energy & Resources Group and the Department of Environmental Science, Policy & Management at UC Berkeley. He investigates the effects of human actions on, and the linkages among, biogeochemical processes, ecosystem structure and function, biodiversity, and climate. His work spans a range of scales from plot to landscape to global and involves field investigations, mathematical modeling, and theory development. A long-term climate manipulation experiment in a montane meadow in the Colorado Rockies and the development and testing of a comprehensive theory of macroecology are among his ongoing projects. He also conducts policy studies that draw out the societal implications of scientific findings.