Beetroot Films Inc

Off the coast of Portland, Maine, an aquaculture startup is raising kelp in the open ocean, then sinking it to the seafloor to sequester the carbon inside !

Forget planting trees: This company is making carbon offsets by putting seaweed on the ocean floor Running Tide grows kelp, which sucks carbon from the atmosphere. Then it just lets it sink to the ocean floor, where the carbon will stay for a thousand years.