Seaweed aquaculture could absorb nearly 240 million tons by 2050, equal to the annual emissions from more than 50 million fossil fuel–powered cars. (via NexusMediaNews)
, from Stony Brook University, put that figure at 200 pounds of nitrogen per acre.) Seaweed aquaculture could absorb nearly 240 million tons by 2050, equal to the annual emissions from more than 50 million fossil fuel–powered cars, according to aCompared to land-based crops, kelp requires very few resources—just spores, sea, and sunlight—and far less labor and harvesting equipment, said Halley Froehlich, a marine biologist at the University of California, Santa Barbara.
Troge and her fellow farmers ran the business out of a cabin donated by the ministry and encountered their share of challenges. It took longer than they had expected to find the right species of kelp—one that they deemed hearty enough for the hatchery. But by the spring of 2022, the Shinnecock women harvested 100 pounds of kelp, most of which they dried and sold as organic fertilizer. They donated their excess spores back to GreenWave, which distributed the excess to other growers. This was a small harvest compared to. Gobler, the marine scientist, estimated that a one-acre ocean farm could generate 70,000 pounds of kelp.
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