Interagency Working Groups (IWGs) are the primary USGCRP vehicles for implementing and coordinating global change research activities within and across agencies. These groups are critical to integration and assessment of progress throughout the Program. The working groups span a wide range of interconnected climate and global change issues and address major components of the Earth's environmental and human systems, as well as cross-disciplinary approaches for addressing these issues.

IWGs are designed to bring agencies together to plan, develop, and implement coordinated activities, and to identify and fill gaps in the Program’s plans. They allow public officials to communicate with each other on emerging directions within their agencies, their stakeholder needs, and best practices learned from agency activities. Together, these functions allow the agencies to work in a more coordinated and effective manner.

The IWGs are overseen by the Subcommittee on Global Change Research and are composed of representatives from Federal departments and agencies responsible for activities in each research area. 

• Adaptation Science Interagency Working Group
• Carbon Cycle Interagency Working Group
• Education, Extension, and Training Interagency Working Group
• Global Change Information Interagency Working Group
• Indicators Interagency Working Group
• Integrated Observations Interagency Working Group
• Interagency Crosscutting Group on Climate Change and Human Health
• Interagency Group on Integrative Modeling
• International Activities Interagency Working Group
• Process Research Coordinating Committee
• Scenarios and Interpretive Science Coordinating Group
• Social Sciences Coordinating Committee