California Gov. Jerry Brown presented an environmental consensus statement co-written by several Stanford Woods Institute fellows to Chinese President Xi Jinping during Xi’s recent visit to the U.S.

The statement, signed by more than 500 international scientists, including more than 50 from Stanford, lays out a global scientific consensus and offers broad-brush solutions for challenges including climate change, loss of eco-diversity, extinctions, pollution, population growth and overconsumption of resources (more details). As of June 10, a total of 2,073 people had signed the statement online.

Brown gave the statement to Xi on June 8, a day after having presented it to U.S. Secretary of State John Kerry. During wide-ranging talks that weekend, Xi and President Obama discussed climate change and other environmental issues. The two leaders agreed to reduce emissions of hydrofluorocarbons (HFCs) and share clean-energy technology. HFCs, compounds used in many refrigerators and air conditioners, are powerful and fast-growing climate pollutants. The U.S. and China are the world’s largest emitters of greenhouse gases, including HFCs.

Senior congressmen, including California Rep. Henry A. Waxman, had urged Obama to discuss climate change with Xi. Weeks before Obama’s meeting with Xi, Stanford Woods Institute researchers provided answers to climate science questions from Waxman in his role as ranking member of the House Committee on Energy and Commerce.

Anthony Barnosky, a University of California at Berkeley integrative biology professor and Cox Visiting Professor in Stanford’s Department of Environmental Earth Systems Science and Stanford Woods Institute Senior Fellow Elizabeth Hadly (Biology) led the effort to draft the statement. Hadly and Barnosky, along with co-authors Rodolfo Dirzo (Environmental Science), Paul Ehrlich (Biology) and Stephen Palumbi (Biology), all Stanford Woods Institute senior fellows, and Anne Ehrlich, a senior research scientist in Stanford’s biology department, first presented the document to Brown on May 23 (story here).