Welcome to Climate Change Research

Using climate system models

The Climate Change Research Section (CCR) is part of the Climate and Global Dynamics (CGD) Division at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado.

The CCR section makes extensive use of state-of-the-art coupled climate system models to study the sensitivity and stability of the Earth system to a variety of forcings, including changes of greenhouse gases, aerosols, solar irradiance, volcanic forcing, land characteristics, and land use change. CCR is a focal point for NCAR and university paleoclimate research and serves as a resource to the paleoclimatic and climate change research community in the use of the Community Climate System Model (CCSM). CCR scientists collaborate closely with major U.S. Department of Energy (DOE) laboratories in developing and using high-performance coupled climate models to address national climate research and policy questions.

President Obama Announces Medal of Science Recipients


CCR Research

Climate Change

Present and Future Climate Change Research

Integrated Assessment Modeling

Models linking biophysical and socio-economic elements


Earth's Climate Sensitivity and Stability