Earth reserch center:

The Center for River and Estuaries is focused on the better understanding of rivers and estuaries worldwide. This includes the distribution, transport, and flux of contaminants, sediments, nutrients, organic material, carbon, and aerosols. The center also studies the evolution and linkage of marshes and wetlands.[1]
The Center is divided into three main areas of research:[2] maintenance of the Hudson River and New York Harbor, finding solutions to use the water system without harming the ecosystems of the watershed, and maintaining the diverse estuary fisheries for commercial and recreational use.
The Center for Climate Systems Research was established in 1994 to promote interdisciplinary research in Earth and climate systems for both the Goddard Institute for Space Studies and Columbia.
CCSR seeks a greater understanding of climate sensitivity and variability including the force and feedback mechanisms that influence climate, particularly with regard to how this can impact humanity and environmental stability. Its current director is Leonard Druyan.