While many forms of aquaculture have wreaked havoc on ecosystems, fisherman-turned-ocean farmer Bren Smith says farming the world’s oceans could help solve the climate crisis—if we do it right. In the wake of the dire report on the state of the oceans from the UN’s Intergovernmental Panel on Climate Change (IPCC), host Lisa Held talks to Smith about his method of 3D restorative ocean farming (which requires zero inputs and can sequester carbon), his new book, Eat Like a Fish, and how he’s training other young farmers to grow food at sea, via his non-profit organization GreenWave.