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California and The World Ocean - David Helvarg (DigitalOcean2011) View |
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David Helvarg's The Golden Shore (Thankyouocean) View |
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50 Ways to Save the Ocean - David Helvarg (FORA.tv) View |
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Earth Focus Interview: David Helvarg (Link TV) View |
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David Helvarg Interview and Ralph Nader Introduction of The Golden Shore (Politics and Prose) View |
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Warwick's Books Presents David Helvarg's Saved By The Sea (Warwick's Books) View |
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Where Ocean Policy and Science Meet (Marine Applied Research \u0026 Exploration) View |
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TheGoldenShoreBookVideo (David Helvarg) View |
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How to Save a Dying Ocean (ReasonTV) View |
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Blue Frontier's, Peter Benchley Awards (Shark Stewards) View |