Executive Director, National Center for Science Education

Director, Center for Nature and Health, UCSF Benioff Children’s Hospital

Co-Director, Citizen Science at the California Academy of Sciences

President, William and Flora Hewlett Foundation

Director, California Department of Forestry and Fire Protection

Professor, Environmental Science, Policy & Management, U.C. Berkeley

Executive Director, Sierra Club Foundation

General Manager, San Francisco Recreation and Parks

Executive Director, Autodesk Foundation

Executive Director, The Solutions Project

Founder, Chorus Foundation

Science and Environment Editor, Inside Philanthropy

Vice President and Deputy CEO, Bezos Earth Fund