Aquaculture has gotten much greener, with American innovators leading the way.
When I meet Kenny Belov mid-morning at San Francisco's Fisherman's Wharf, the boats that would normally be out at sea chasing salmon sit tethered to their docks. The steady breeze coursing through the bay belies choppier conditions farther out—so rough that the local fishermen threw in the towel for the fifth morning in a row. Belov scans the horizon as he explains this, feet away from the warehouse of his sustainable seafood company, TwoXSea. Because his business hinges on what local fishermen can bring in, he's used to coping with wild fish shortages.
But unlike these fishermen, Belov has a stash of treasure in his warehouse, as he soon shows me: a golf-cart-size container of plump trout, their glossy bodies still taut from rigor mortis. The night before, Belov drove north to Humboldt to help "chill kill" the fish by submerging them live into barrels of slushy ice water. Belov can count on shipments of these McFarland Springs trout every week—because he helped grow them himself on a farm.