The recent Santa Barbara oil spill, which released 21,000 gallons of crude oil into the Pacific, underscored the vulnerability of our waterways and marine life. But oil is only one of the many threats facing the world's beleaguered oceans. Plastic garbage is another growing problem, with millions of metric tons of it ending up in the oceans each year. On World Oceans Day, we'll discuss these and other marine pollution challenges, as well as possible solutions.
Oil Spills and 'Plastic Soups' Among Biggest Threats to the World's Oceans
David Helvarg, author of "Saved by the Sea: Hope, Heartbreak, and Wonder in the Blue World"; president of Blue Frontier Campaign
Nancy Wallace, director of the Marine Debris Program, National Oceanic and Atmospheric Administration (NOAA)
Nicholas Mallos, director of Trash Free Seas Program, Ocean Conservancy
Sam Farr, congressman and chair of the House Oceans Caucus