What will it take to get plastics out of the ocean?

From drones to filters to gigantic cleaning arrays, innovators are working to reduce the threat thousands of tons of trash pose to marine ecosystems. But how realistic are their plans, and how much of a difference will they be able to make? Read my article on Ensia

An Earth Journalism Network Future Oceans Story, re-published under CC-BY on Vox, GreenBiz, and BusinessInsider. Many thanks to my editors Maggie Mazzetti (Earth Journalism Network) and Mary Hoff (Ensia)!