The U.S. Geological Survey's Global Change Research Program is an international source for ground-based and remotely sensed earth science data and information used by researchers and contributing to a whole-system understanding of the interrelationships among earth surface processes, ecological systems, and human activities.

USGS Carbon Cycle Research The U.S. Carbon Cycle Science Program (CCSP) is an interagency partnership that draws on the expertise and ongoing research in seven agencies, with the objective of developing a whole-system predictive capability for the global carbon system. The ultimate goal is to provide integrated estimates of carbon sources and sinks, with a focus in FY 2000 on implementing ...