David Helvarg is the author of six books, including Rescue Warriors, 50 Ways to Save the Ocean, and Saved by the Sea. He is founder and executive director of Blue Frontier and cofo...vizualizați mai multeDavid Helvarg is the author of six books, including Rescue Warriors, 50 Ways to Save the Ocean, and Saved by the Sea. He is founder and executive director of Blue Frontier and cofounder of the Peter Benchley Ocean Awards. He lives in the San Francisco Bay Area.vizualizați mai puține