Bob Bingaman, Field Director for the Sierra Club, serves as a Green Corps principal trainer.

• Bob Bingaman, Field Director, Sierra Club

• Andy MacDonald, Assistant National Campus Organizing Director, The Student PIRGs

• Douglas Phelps, Chair, U.S. PIRG

• Naomi Roth, Training Director, Public Interest Network

• Adam Ruben, Political Director, MoveOn.org 

• Leslie Samuelrich, Deputy Director, Corporate Accountability International 

• Wendy Wendlandt, Political Director, U.S. PIRG 

Guest Trainers 

Gina Cummings, Director of U.S. and International Campaigns for Oxfam America, speaks to Green Corps trainees.

• Parker Blackman, Managing Director, Fenton Communications

• Michael Brune, Executive Director, Rainforest Action Network

• Gina Cummings, Director of U.S. and International Campaigns, Oxfam America

• Dave Foreman, founder, EarthFirst!

• Ross Gelbspan, Pulitzer Prize-winning journalist and author of The Heat Is On

• Lois Gibbs, Director, CHEJ: Center for Health, Environment, and Justice

• Randy Hayes, founder, Rainforest Action Network

• Jim Hightower, progressive author and activist

• Judith Helfand, filmmaker, A Healthy Baby Girl and Blue Vinyl

• Dolores Huerta, Co-founder, United Farm Workers

• Gene Karpinski, President, League of Conservation Voters

• Michael Marx, Executive Director, Business Ethics Network

• Bill McKibben, author and founder of Step It Up

• David Orr, environmental educator

• John Passacantando, Executive Director, Greenpeace

• Wade Rathke, Chief Organizer, SEIU Local 100