USGCRP coordinates and supports the engagement of the U.S. science community in major international assessments on global change science, including those conducted by the Arctic Monitoring and Assessment Programme, the Intergovernmental Panel on Climate Change (IPCC), and the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), as well as science panels informing the Montreal Protocol on Substances that Deplete the Ozone Layer process.

 

International assessment reports provide policymakers with regular updates on the state of knowledge, current and future risks, and potential response options to climate change, biodiversity loss, and other drivers of global environmental change. Scientists affiliated with and supported by USGCRP are key contributors to major assessments as authors and reviewers, providing technical support and scientific expertise. 

 

In collaboration with the State Department, USGCRP provides support for U.S. author participation in and U.S. government review processes for these assessments. In addition, USGCRP member agencies support scientific observations and model projections that serve as key inputs into assessment deliverables. In 2019, IPBES published a major global assessment, and IPCC released two Special Reports requested by governments as part of the Sixth Assessment Report cycle.