Fuller Challenge winner says his GreenWave 3D ocean farm concept "could feed the world"

So Smith invented the world’s first 3D ocean farm. Not only does his model aim to reduce overfishing, but it also attempts to mitigate the effects of climate change. [...]

With scalability in mind, Smith wanted his model to be simple and replicable. To that end, GreenWave supports other fish farmers to get create their own 3D ocean gardens.

“If you were to take a network of our farms totaling the size of Washington state, technically you could feed the world,” Smith said. — marketplace.org