Running Tide

Running Tide is a company dedicated to carbon removal, primarily through ocean alkalinity enhancement and biomass sinking. In 2023, the company successfully removed 25,416 tonnes of carbon and delivered over 21,000 carbon credits to its customers, which include major enterprises like Microsoft and Shopify, as well as over 12,000 total purchasers. Running Tide’s carbon removal process involves dissolving alkaline minerals into the ocean and using photosynthesis and gravity to store carbon in the deep sea. This process has been validated by Deloitte for alignment with ISO 14064-2 standards and reviewed by NIVA for environmental safety in the Norwegian Sea. The company has deployed 546 ocean sensors to monitor project locations, capture images, and collect real-time ocean data, and has developed a Framework Protocol for open ocean carbon removal. Running Tide’s operations in Iceland include terrestrial biomass sinking and ocean alkalinity enhancement, and the company received a first-of-its-kind permit for ocean carbon removal from the Icelandic government. The company’s carbon buoys, composed of wood coated in limestone and lime kiln dust, float for an average of three weeks before sinking nearly a mile to the ocean floor. Running Tide’s carbon removal system is designed to spread out and minimize concentration in any one place, mimicking natural processes that have occurred for millions of years. The company also advances ocean science through shared data and research with global institutes, and aims to restore critical biodiversity by repairing natural processes and rebalancing ocean chemistry. Running Tide’s quantification platform integrates in-situ measurement, modeling, and laboratory research to calculate the total net carbon removed through their operations. The company has 30 research and commercial partnerships and directly impacts coastal communities by building the new Blue Economy and accelerating economic transformation by decarbonizing industrial supply chains. Running Tide’s carbon removal projects are subject to assurance and third-party review by accredited, internationally-recognized auditing firms, and their carbon removal credits are connected to specific quantification results and their associated projects with all supporting monitoring and modeling data.