Adam Baske, business development manager for Portland s Running Tide Technologies, holds a tube wrapped in early-stage kelp. Entwined with biodegradable rope, the kelp will grow in the sea off Scarborough and once full-grown, sunk to the ocean bottom. (Fred Bever/Maine Public)
The fight against climate change has long focused on scaling back humanity’s emissions of planet-warming carbon-dioxide. But a movement is growing to think bigger and find ways to actually pull existing CO2 out of the air and lock it up somewhere safe.
One Maine startup has an innovative approach that’s drawing attention from scientists and investors: grow massive amounts of seaweed and then bury it at the bottom of the deepest sea, where it will sequester carbon for thousands of years.
The fight against climate change has long focused on scaling back humanity’s emissions of planet-warming carbon-dioxide. But a movement is growing to think