David Helvarg

Subjects

Marine resources conservation, Biography, Conservationists, Fisheries, Journalists, Marine biology, Nature conservation, Directories, Heroes, History, Journalists, biography, Journalists, united states, Rescue work, United states, biography, United states, coast guard, Anti-environmentalism, California, description and travel, California, history, Citizen participation, Coasts, Description and travel, Economic aspects, Environmental aspects, Environmental conditions, Environmental law, united states

Places

United States, California, Pacific Coast (Calif.), Pacific Ocean

People

David Helvarg (1951-)