Restoring and expanding kelp forests across the oceans will bolster marine health, reverse ocean acidification, prevent coral bleaching, increase fish harvests, and safely store enormous amounts of carbon.
The oceans hold fifty times more carbon than the atmosphere. The core insight of seaforestation is that a 0.5 percent change in the amount of carbon contained in the oceans would solve the climate crisis while delivering a wealth of benefits to people and ocean life. Seaforestation involves seeding fast-growing seaweeds like kelp. Restoring lost kelp forests can bring back vital habitat for a variety of marine life, boosting local fisheries while drawing down carbon from the atmosphere. Human-engineered kelp forests in the deep ocean would sequester carbon for thousands of years. These approaches would benefit fisheries, coral reefs, and current marine dead zones, while removing billions of tons of carbon out of the atmosphere annually.