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Global Energy and Water Cycle Experiment (GEWEX)
Observes and models the hydrologic cycle and energy fluxes in the atmosphere, at the land surface, and in the upper oceans.
http://www.gewex.org/
U.S. Carbon Cycle Science Program (CCSP)
Investigates the rising atmospheric carbon dioxide concentration and its potential impact on future climate.
http://www.carboncyclescience.gov/
