Captura Corporation, a spinoff of the California Institute of Technology, has developed a revolutionary plan to remove carbon emissions by creating an aquatic purification facility in the middle of the sea. The company intends to extract carbon dioxide from ocean water and release the purified water back into the ocean, using only renewable electricity and ocean water as inputs to minimize the environmental impact.

The carbon clean-up will be achieved through the company’s patented electrodialysis process, dubbed Direct Ocean Capture (DOC). DOC generates a stream of pure CO2 that can be sequestered or reused to produce other low-carbon materials or products, in an effort to mitigate the adverse effects of climate change. The company aims to achieve large-scale carbon removal at a lower cost than existing methods.

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The Caltech-developed DOC technology is reportedly capable of extracting gigatons of carbon from the ocean. The process begins by bringing a filtered stream of ocean water into the facility, where the electrodialysis technology is used to create acid.

Read more: New Atlas