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Fifth National Climate Assessment - Read the Report

International Activities Interagency Working Group

Understanding the nature and impacts of climate and environmental change is a research challenge that calls for international scientific collaboration on global and regional scales. In order to help facilitate this cooperation, the International Activities Interagency Working Group (IAIWG) works with USGCRP agency members to promote international and intergovernmental cooperation on global change research, in support of the Global Change Research Act of 1990.

The group works to promote and contribute to international and intergovernmental cooperation in global change research and to encourage the involvement of scientists and decision-makers in interdisciplinary research that addresses the spectrum of global change science, from foundational research and observations to more applied activities that address societal risk management and adaptation needs.


The Initiative for Enhancing Capacity for Climate Risk Assessment and Catalyzing Partnerships to Inform Decisions in Latin America and the Caribbean, or LACI, is a collaborative effort between the U.S. Global Change Research Program and U.S. Group on Earth Observations (USGEO) and regional partners, including AmeriGEO and the Inter-American Institute for Global Change Research. LACI's overarching vision is to provide opportunities for partnerships between Caribbean, Latin American, and North American countries to enhance capacity for climate risk and vulnerability assessments that would support local and regional decision-making in response to climate change impacts. Learn more about LACI.

Additional Activities

Global environmental change programs engage the breadth of developed and developing nations towards research, outreach, capacity building, and assessment activities to improve our understanding of the changing earth system. In support of these efforts, the IAIWG currently engages with international organizations and initiatives in a variety of ways, including the following:

  • Contributing to the core support of several international organizations such as Future Earth, START, and the World Climate Research Programme​;
  • Working with regional networks such as the Inter-American Institute for Global Change Research (IAI) on topics of mutual interest;
  • Engaging with the Belmont Forum, an international partnership that catalyzes funding for scientific research in support of resilience and sustainability; and
  • Fostering cooperation across international organizations by hosting regular dialogues among these partners and USGCRP agencies.

IAIWG in the National Climate Assessment

The IAIWG engages in and supports the development of the international content for the National Climate Assessment (NCA). The Fourth NCA identified several key messages regarding the effects of climate on U.S. international interests, as well as some of the benefits of international scientific cooperation, including opportunities to leverage funding, the ability to shape priorities of a global research community, and mechanisms to share technical expertise across countries, regions, and communities on climate adaptation and resilience.
For more information, please contact Dr. Brian Leung.