Experts to discuss new federal climate change assessment report for the U.S.

Update: Audio from the November 23, 2018 NCA4 media call is posted to the "resources" section below.
November 21, 2018
High tide flooding affected a boat show in Annapolis, Maryland, October 13, 2017

On Fri., Nov. 23, experts will discuss the key findings of the Fourth National Climate Assessment Vol. II, which will be released by the U.S. Global Change Research Program (USGCRP) that day. The report is an authoritative assessment of the impacts of climate change on the U.S. and its territories, and was written to help decision-makers, utility and resource managers, public health officials, emergency planners, and other stakeholders better understand the effects of climate change on the United States. USGCRP will also release the Second State of the Carbon Cycle Reportoffsite link (SOCCR2).

This new report, also called NCA4, builds on the 2017 Climate Science Special Report (CSSR), Volume I of the Fourth National Climate Assessment, which described observed trends in the global and U.S. climate, and projections for temperature, precipitation, sea-level rise, and Arctic sea ice for the remainder of this century. CSSR served as the scientific foundation for the NCA4, Vol. II that will be released.

Conference call on the Fourth National Climate Assessment Vol. II featuring presentations followed a Q&A.

Fri., Nov. 23, 2:00 p.m. Eastern Time (U.S.)


  • Virginia Burkett, acting chair of the subcommittee on Global Change Research

  • David Reidmiller, director of the National Climate Assessment, United States Global Change Research Program

  • David Easterling, director, Technical Support Unit, NOAA National Centers for Environmental Information

  • William Hohenstein, director, Office of Energy and Environmental Policy, United States Department of Agriculture (will be on the call to answer questions about SOCCR2)

Reporters must RSVP to to receive a link to the report website on Friday at 1:00 p.m ET. The report and website contents are embargoed until 2:00 p.m.

To participate in the media call, U.S. and Canadian media may call 888-469-1343 (toll-free)  Other international media may call 1-203-827-7009 (toll). Please use the passcode “NCA4.”

Media can also learn more about NCA4 at a special science sessionoffsite link at the American Geophysical Union Annual Fall meetingoffsite link on Tuesday, Dec. 11, from 4 p.m. to 6 p.m. in Room 202A of the Walter E. Washington Convention Center, Washington, D.C. Working members of the media may register hereoffsite link.  

There will also be a poster session on NCA4offsite link on Wednesday, Dec. 12, from 8 a.m. to 12:30 pm in the Poster Hall of the Walter E. Washington Convention Center, Washington, D.C.  

Upcoming SOCCR2 events and sessions, including at the AGU Fall meeting can be found hereoffsite link.

Monica Allen, 301-734-1123 (office), 202-379-6693 (cell)
Brady Phillips, 240-533-0946 (office), 202-407-1298 (cell)