Global Head, Policy and Government Relations, The Nature Conservancy

US Secretary, Agriculture

Editor in Chief, The Guardian​

Founder, Xatoms

Partner and Segment Leader of Energy, Sustainability, and Infrastructure, Guidehouse

Co-Founder and President, Debris Free Oceans; Program and Outreach Director, Herbert W. Hoover Foundation

Walden Consulting, LLC and Former Chairman, House Energy and Commerce Committee

Director of Natural Resources, Vivid Economics

Founder and CEO, Walker-Miller Energy Services

Author and Futurist

Governor of Minnesota

​Co-Founder and CFO, Electric Hydrogen​

Partner, Breakthrough Energy Ventures

Port Director, PortMiami

Co-Founder and Partner, Recapture

Co-founder and Executive Chairman, Distributed Sun​