Senior Staff Writer, Grist​

Adjunct Research Scholar, Center on Global Energy Policy, Columbia University

Senior Official Performing the Duties of Deputy Administrator

Vice President and Executive Director, Business and Society Program, The Aspen Institute

Vice Chair, Bezos Earth Fund

​CEO, Conservation International ​

Senior Vice President for Programs, Earthjustice

Member, Miami-Dade County Public Schools Board District 9

Executive Director, Center for Native American Youth, Aspen Institute

Executive Director, Center for Native American Youth, The Aspen Institute

Program Director, XPRIZE Wildfire

Professor and Director, FPL-FIU Solar Research Center, Florida International University

President & CEO, MSC Cruises

​Senior Fellow, This Is Planet Ed, Aspen Institute​

Executive Director, Aspen Digital, The Aspen Institute

Founder, Operation Fish Drop