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David Helvarg is a long-time ocean enthusiast, radio commentator for PRI's Marketplace, and author of The War Against the Greens. He has written and produced award-winning articles and television documentaries for Smithsonian, Audubon, Men's Journal, Sports Afield, The New York Times, AP, PBS, Discovery, and AandE. He lives in Washington, DC.Helvarg, David is the author of 'Blue Frontier Saving America's Living Seas' with ISBN 9780805071351 and ISBN 0805071350.
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