Denis HayesSpeaker and Booking Agent Information

He is currently the international Earth Day Network's board chair emeritus. Hayes was the head of the government Solar Energy Research Institute, which has since been renamed the National Renewable Energy Laboratory, during the Carter administration.

Hayes has worked as a senior fellow at the Worldwatch Institute, adjunct professor of energy engineering and human biology at Stanford University, Regents' Professor of Natural Resources at the University of California in Santa Cruz, and a Silicon Valley lawyer at the Cooley firm.

Hayes has held positions as a visiting scholar at the Woodrow Wilson International Center for Scholars in Washington, DC, and the Bellagio Center in Italy, as well as a Bosch Foundation Richard von Weizsäcker Fellow.

Hayes has received the Jefferson Medal for Outstanding Public Service, the Ridenhour Courage Prize, an inaugural Green Swan Award, and the Rachel Carson Award, among other honors from the Sierra Club, the Environmental Law Institute, the Humane Society of the United States, the National Wildlife Federation, the Natural Resources Council of America, and the Global Environmentalists.

Stanford University, the World Resources Institute, the Federation of American Scientists, the Energy Foundation, Children Now, the National Programming Council for Public Television, the American Solar Energy Society, Greenpeace, CERES, and the Environmental Grantmakers Association are among the governing boards he has served on. Hayes was named one of Time magazine's "Heroes of the Planet" in 1999.

In 1990, he was named one of “The Life 100 Most Important Americans of the 20th Century” by Life magazine.

ABC News and the New York Times have both featured him as a "Newsmaker of the Week." Rays of Hope: The Transition to a Post-Petroleum World was written by Hayes, and COWED: The Hidden Impact of 93 Million Cows on America's Health, Economy, Politics, Culture, and Environment was co-authored by Hayes and his wife, Gail Boyer Hayes.