Shells
How can we take 10 billion tons of carbon out of circulation every year? It’s a trillion dollar question and start-up company Seachange has an answer: make more seashells, more quickly. The formation of calcium carbonate shells is a natural process that locks away carbon for millions of years. Their technology, so far only lab-tested, draws seawater through a mesh, giving it an electric charge that triggers the necessary chemical reaction. Unlike the air, the ocean has much higher carbon concentrations and the sequestration process takes less energy. Seachange estimates that 1,800 of their shell-making devices could be enough.
— Wayne Visser
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From Purpose Inspired: Reflections on Conscious Living, Volume 5. Buy on Lulu ↗