Farming Kelp to Fight Climate Change

There’s a global movement to plant forests that can pull carbon dioxide out of the atmosphere. But trees grow slowly—and kelp, on the other hand, is one of the fastest-growing plants in the world. It’s basically the forest of the ocean. Could kelp farming be a quicker way to tackle the planet’s carbon problem? That’s what a Maine startup called Running Tide is working on. Marty Odlin is the CEO and founder. (Segment produced by Sydney Jezik)