Kelp in water
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Kelp sinking

Kelp can capture CO₂ via photosynthesis and sink to the deep ocean where pressure slows/stops decomposition.

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By seeding natural buoys with macroalgae (seaweed/kelp) and floating them into the ocean, the macroalgae can grow in the surface waters and capture carbon dioxide via photosynthesis. Over time the macroalgae grow, eventually getting so heavy that they sink to the deepest depths of the ocean. Here the pressure from the water slows/stops decomposition so the CO₂ remains locked away for thousands of years.

We partner with Running Tide to sink carbon to the bottom of the ocean.