A TED Talk, featuring marine biologist Sylvia Earle, who reports on a global network of “Hope Spots” to protect the ocean before it’s too late. The picture is both more urgent and more hopeful than viewers might expect. From 100,000 fur seals saved from near-extinction to coral reefs rebuilt clam by clam, Earle says we already know exactly what needs to be done; the only thing left is to find the will to do it. Watch now.