Oceans cover over two-thirds of the planet's surface and are home to at least a million known species of plants and animals that rely on the health of the seas for survival. On top of that, we humans have relied on the oceans for sustenance for a long time. But in light of pollution, climate change and overfishing, the ocean's ecosystems are dying at a rapid rate. Over 85 percent of the world's fisheries have been pushed to or beyond their biological limits, according to the World Wildlife Fund, coral reefs are dying, and wild-caught seafood is becoming increasingly detrimental to the health of the ocean.
In light of these grim realities, environmentalists, activists and innovators across sectors are working to build more sustainable systems for harvesting food from the ocean. The latest comes from GreenWave, "an ocean farmer and fisherman-run organization dedicated to building a new blue-green economy that creates jobs, mitigates climate change and grows healthy food for local communities," according to their website. Their bright idea? Floating farms that regenerate the ocean while simultaneously growing sustainable crops of seaweed and shellfish.