Winnie Roberts

Guinnevere (Winnie) Roberts is vice president for environment at The Pew Charitable Trusts, helping shape and influence its multifaced environmental portfolio and oversee significant elements of the organization’s environmental and crosscutting work. She joined Pew in 2017. Since then, Winnie has played an instrumental role in the organization’s ocean conservation projects, led development of the safer chemicals project—which aims to reduce Americans’ exposure to endocrine-disrupting chemicals—and led initiatives that connect environmental challenges with broader policy goals.

Before joining Pew, Roberts was director of multilateral affairs for the President’s Emergency Plan for AIDS Relief, worked with the U.S. Agency for International Development on combating tuberculosis, and represented the United States in a range of organizations, including the Joint United Nations Programme on HIV/AIDS, UNESCO, and the U.N. Office on Drugs and Crime. She also worked for the U.S. Environmental Protection Agency.

Roberts holds a bachelor’s degree in political science from Yale University and a doctorate in zoology and ecology, evolution, and conservation biology from the University of Hawaii.