You might’ve heard of rewilding on land—bringing back wolves to Yellowstone, or letting forests regenerate. But beneath the surface, a similar revolution is happening.

From oyster reefs and kelp forests to coral restoration and even the return of whales, ocean rewilding is about restoring ecosystems that not only support life—but also help store carbon.

Today, we’re going to explore how restoring marine biodiversity creates more resilient, more effective carbon sinks—and how people around the world, from scientists to fishers to Indigenous communities, are leading the charge.