Biogeochemical Cycle-Climate Interactions

Earth and its atmosphere make up a closed system, in which virtually every substance is recycled through various chemical and biological processes. The term "global biogeochemical cycles" refers to the transport and transformation of substances in the natural environment and serves as a useful paradigm for viewing the Earth as a unified, dynamic system.

Researchers affiliated with the PCC are studying multiple aspects of the global biogeochemical cycling of carbon, oxygen, nitrogen, sulphur, and some trace metals. Their work is advancing our understanding of interactions among the atmosphere, geosphere, and hydrosphere, and the mechanisms through which biological processes on land and in the sea maintain atmospheric gas concentrations.