From hunter to farmer: A former fisherman is restoring our oceans and rearranging our seafood dinners in the process.

After working as an industrial fisherman for decades and witnessing the devastating effects of mass-fishing, Bren Smith decided to look for more sustainable ways to feed the planet.

A few years ago, he developed an unique, vertical 3-D ocean farming model: a sort of underwater garden composed of kelp, mussels, scallops and oysters. Those species are not only edible and in high demand, Smith explains, but they also act as a filter for nitrogen and carbon dioxide, rebuilding natural reef systems and restoring our seas. In 2013, Smith launched the nonprofit GreenWave to help other fishermen replicate his innovative farming model. "This is our chance to make food right and agriculture right," he says.

Learn more about Smith's journey and his vision of what tomorrow's seafood plate looks like by watching the video above.

For more stories like this, click here.

Find us on Facebook and Twitter