• National Resources Defense Council
• Sierra Club
• Rainforest Action Network
• Environmental Defense
• Greenpeace
• Etc.

Lester R. Brown is the founder and President of Earth Policy Institute, has been described by the Washington Post as "one of the world's most influential thinkers"and as "the guru of the global environmental movement" by The Telegraph of Calcutta. The author of numerous books, including Plan B 2.0: Rescuing a Planet Under Stress and a Civilization in Trouble where he develops a vision for an environmentally sustainable economy, chapters, articles, etc., he helped pioneer the concept of environmentally sustainable development. His principal research areas include food, population, water, climate change, and renewable energy. The recipient of scores of awards and honorary degrees, he is widely sought as a speaker. In 1974, he founded Worldwatch Institute, of which he was President for its first 26 years. As President, he launched the World Watch Papers, the Worldwatch/Norton books, the annual State of the World report, the bimonthly magazine World Watch, the annual Vital Signs, and the Institute's News Briefs. For relaxation, Lester runs. [Bio from Earth Policy Insitute]

Neil has been called a "green design guru". He is the CEO and President of Chambers Design, Inc and founder of Green Ground Zero. Neil applied ecological principles to land/master planning, products, infrastructure and architecture with projects in the United States and internationally. His projects combine the environment with usability and aesthetics.

Neil has been involved with shaping environmental policy on the city and state level. He teaches at New York University. His courses explore the intersection of green design and environmental policy. Neil has lectured worldwide including Indonesia, Spain and Turkey as well as around the United States. He is host of a television/webcast series that brings experts within the green industries to have an in-depth, spirited conversation about the past, present and future of environmental subjects. He contributes to greengroundzero.org, treehugger.com and guernicamag.com.

Formed in 1969, the Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment and a safer world. UCS combines independent scientific research and citizen action to develop innovative, practical solutions and secure responsible changes in government policy, corporate practices, and consumer choices.

"We seek to ensure that all people have clean air, energy and transportation, as well as food that is produced in a safe and sustainable manner. We strive for a future that is free from the threats of global warming and nuclear war, and a planet that supports a rich diversity of life. Sound science guides our efforts to secure changes in government policy, corporate practices and consumer choices that will protect and improve the health of our environment globally, nationally and in communities throughout the United States. In short, we seek a great change in humanity's stewardship of the earth."