Not buying it. Like Cuba gov can mandate everyone to grow their own foods in their yards, and cities could demolish buildings to create city gardens for same purpose. Problem is someone always wants to make money off of some waste they produce. Floride in the water comes from smoke stacks. Over fishing comes from lack of gov regulation seeing how they get subsidized by tax payers. Cut back and the fish will restock themselves. Farmers are already making their industry better. USA manufactory plants are super old. Can be rebuilt to update tech. The ocean bio traps more carbon then the trees, so farmland and trees isnt as big of an issue as dredging the sea floor.