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Kelp! It's slimy, it's tangly, it's ... delicious! And experts say this nearly magical sea plant can help tackle two big global challenges: climate change and hunger. To learn more, GZERO Reports headed out to an oyster farm in Long Island to meet Michael Doall, associate director of shellfish research at Stony Brook University. Doall, dubbed the "Johnny Appleseed of Sugar Kelp," explains how the bounty of the sea can help address some of the problems we are creating on land.

This clip is part of an upcoming episode of GZERO World with Ian Bremmer. Check local US television listings to watch, or find the episode on GZERO's YouTube channel.