
We remove atmospheric carbon dioxide using seaweed's natural photosynthetic process and we turn it into a bioplastic. We make our growing systems from this and at the end of their useful life, they are buried and their embodied carbon is stored permanently
There’s a genus of seaweed called Ulva — you’d know it as sea lettuce. In controlled conditions Ulva has been recorded above 40% per day. We design to 12.5%, and the gap between those two numbers is the thing we have to prove

To maintain the best growing conditions, Ulva must be grown in land-based tank systems — not in the open ocean where you’re at the mercy of the seasons, the storms, and the inevitably variable nutrition.
To achieve a scale that can capture a meaningful quantity of atmospheric CO₂, ingredients from the harvested Ulva are used to make the systems that the next generation of Ulva will be grown in. This is the nonlinear way.
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