Nonprofit that wants to use volcanic rock to remove carbon from the atmosphere. Dramatically accelerates the carbonate-silicate cycle, an ancient natural process. They make green-sand beaches with an abundant volcanic mineral, olivine. There, wave action speeds up the carbon dioxide capture process while de-acidifying the ocean. Thirty years of scientific research has demonstrated that this works and has provided strong evidence that it is a highly affordable and scalable solution. The process captures 20 times more carbon dioxide than the extraction and transportation of the olivine. If deployed on just 2% of global shelf seas, we could capture 100% of annual human carbon emissions.