A panel of experts has created an updated draft position of the American Geophysical Union (AGU) on geoengineering. The organization encourages its members to provide written feedback about this draft statement during a 30-day comment period that opens today and closes on Monday, 25 September at 11:59 p.m. Eastern time.

Comments must be submitted online here. The panel will review all of them before completing a final version of the statement.

AGU first formulated an official position on geoengineering in 2009, when it adopted a statement in collaboration with the American Meteorological Society. AGU last updated its geoengineering statement in 2012.

AGU position statements relate the understanding and application of Earth and space sciences to relevant public policy. Members are encouraged to use position statements to help communicate with stakeholders about important Earth and space science topics. The current list of AGU statements is available on the society’s web page of position statements and letters.

Contributing members of the expert panel, which was convened at the request of the AGU Position Statement Task Force, include David Victor (Chair), Ken Caldeira, Piers Forster, Ben Kravitz, Marcia McNutt, Joyce Penner, Alan Robock, Naomi Vaughan, and Jennifer Wilcox.

—Elizabeth Landau (email:, Assistant Director, Public Affairs, AGU


Landau, E. (2017), Position statement on geoengineering: Call for comments, Eos, 98, Published on 24 August 2017.

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