This piece was originally published in Wired and appears here as part of our Climate Desk collaboration. Off the coast of California lies an underwater forest of giant kelp, a kind of seaweed that grows to 100 feet tall at the rate of a foot a day. Just as a terrestrial forest sucks carbon dioxide out of the air, all that rapidly growing seaweed soaks up carbon from the water, playing an incredibly important role in climate mitigation. “With kelp goes a huge amount of carbon,” says Chris Wilmers, an…
