Esraa Bani

Herself (Population Action International)

Albert Bartlett

Himself - Host

Lester Brown

Himself (Earth Policy Institute)

Martha Campbell

Herself (Venture Strategies)

Susan Davis

Herself (BRAC)

Brian Dixon

Himself (Population Connection)

Paul R. Ehrlich

Himself - Host

Riane Eisler

Herself (Center for Partnership Studies)

Katie Elmore Mota

Herself (Population Media Center)

John Feeney

Himself (Environmental writer)

Sara Morello

Herself

Malcolm Potts

Himself (University of California at Berkeley)

William N. Ryerson

Himself (Population Media Center)

Peter Sawtell

Himself (Eco-Justice Ministries)

Laura S. Scott

Herself (author of Two Is Enough)

Negussie Teffera

Himself (Population Media Center)

Mathis Wackernagel

Himself (Global Footprint Network)

Lyuba Zarsky

Herself (Monterey Institute of International Studies)

Robert Walker

Himself (Population Institute)