In coordination with the U.S. Department of State, the U.S. Global Change Research Program (USGCRP) seeks expert comment on the second-order draft of the Working Group I contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). A Federal Register Notice has been published to promote the activity.
At the 46th Session of the Panel (Montreal, Canada | September 6-10, 2017), the IPCC approved the outline for the assessment (click here (link is external) for the decision document). The current draft reflects feedback on the first-order version, collected during the first Expert Review (April 29 - June 23, 2019).
As part of the U.S. government review—starting March 2, 2020—experts wishing to contribute to the U.S. government review are encouraged to register via the USGCRP Review and Comment System (https://review.globalchange.gov/). Instructions and the second-order draft will be available for download via the system.