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Fifth National Climate Assessment - Read the Report

Intergovernmental Panel on Climate Change

Under the leadership of the U.S. Department of State, USGCRP supports U.S. participation in assessments produced by the Intergovernmental Panel on Climate Change (IPCC)—a United Nations body that assesses climate change science for policymakers. USGCRP provides support for the participation of U.S. experts in IPCC assessments and facilitates U.S. Government review of IPCC reports. 

In addition, USGCRP is funding the Technical Support Unit (TSU) for Working Group III (WGIII) of the IPCC for the seventh assessment cycle. WGIII focuses on climate change mitigation, assessing methods for reducing greenhouse gas emissions and removing greenhouse gases from the atmosphere. 

The Technical Support Unit provides technical and administrative services in direct support of the elected IPCC WGIII Co-Chairs for the seventh assessment cycle—Katherine Calvin (USA) and Joy Jacqueline Pereira (Malaysia). The team brings a broad range of scientific, policy, operational, and communications expertise to help the Co-Chairs and Vice-Chairs in the preparation and production of IPCC products. The WGIII TSU has nodes at the USGCRP National Coordination Office in Washington, DC; at the NOAA Technical Support Unit in Asheville, NC, and partner entities elsewhere in the United States; and co-located with the developing country WGIII Co-Chair, Dr. Joy Jaqueline Pereira, at Universiti Kebangsaan Malaysia.

The IPCC will produce the following reports during its seventh assessment cycle: 

  • Three Working Group assessment reports

  • A Synthesis report

  • A Special Report on Climate Change and Cities

  • A Methodology Report on Carbon Dioxide Removal Technologies and Carbon Capture Utilization and Storage

  • A Methodology Report on Short-Lived Climate Forcers

  • An update to the 1994 Technical Guidelines for Adaptation (+ Indicators)

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