Denis Allen Hayes, American lawyer, educator. Bar: California 1985, United States District Court (northern district) California. Recipient Jefferson medal American Institute for Public Service, 1979; John Muir award Sierra Club, 1985, Certified Outstanding Achievement, American Solar Energy Society, 1985.
Executive director Earth Day, Washington, 1970. Visiting scholar Smithsonian Institution, 1971-1972. Director Illinois State Energy Office, 1974-1975.
Senior researcher Worldwatch Institute, Washington, 1975-1979. Director Solar Energy Research Institute, Golden, Colorado, 1979-1981. Regents' professor University California-Santa Cruz, 1981-1982.
Consultant professor civil engineering Stanford University, 1982-1987. Member Cooley, Godward, Castro, Huddleston & Tatum, San Francisco, 1985-1990. Chairman, chief executive officer Green Seal, Palo Alto, California, and Washington, since 1990.
- Rays of Hope: The Transition to a Post-Petroleum World (Norton Worldwatch Books)
- A safe, sustainable future is certainly not assured, granted the awesome power of vested interest and inert bureaucracies.
Trustee Stanford University, 1971-1972. Chairman board Solar Lobby, 1978-1979, 83-86, Center for Renewable Resources, 1977-1979, 85-86, RenewAm., 1987-1989, International Earth Day, 1990. Member Federation American Scientists (director), California Environmental Trust (director), American Solar Energy Society.