XPRIZE Carbon Removal aimed to tackle the biggest threat facing humanity—fighting climate change and stabilizing the Earth’s climate. It took place over the course of four years, launching on Earth Day 2021 and concluding during Earth Week 2025.
The grand prize and runner-up winning teams, selected from 20 impressive Finalists across 11 countries, each successfully removed more than 1,000 net tonnes of CO2 in the final year of the competition, meeting XPRIZE’s bold demonstration requirements, the first step towards scaling sustainably to remove billions of tonnes globally.
Grand prize winner Mati Carbon demonstrated a highly durable approach to CDR, by applying finely crushed basalt over agricultural lands in India to accelerate a natural weathering process that permanently draws down atmospheric CO2. Beyond carbon removal, Mati Carbon’s process delivers significant benefits to smallholder farmers. Mati Carbon’s deployments bolster farmers’ livelihoods through improved soil health, reduced agricultural inputs, and increased income at zero cost to them. Mati Carbon’s team has developed a scientifically rigorous approach to monitoring and verification, and excelled across each of XPRIZE’s prize evaluation criteria—operational, sustainability, and cost metrics—giving the XPRIZE judges the highest confidence in Mati Carbon’s solution’s long-term scalability.
NetZero, a French biochar company operating in Brazil, earned recognition as first runner-up and $15M for a highly efficient circular model to source and process tropical crop residues, then returning the biochar to local farmers to improve crop yields and resilience. Vaulted Deep, a U.S.-based waste management company, earned recognition as second runner-up and $8M for permanently storing otherwise unusable organic waste deep underground. UNDO Carbon, an enhanced rock weathering solution operating in Scotland and Canada, earned recognition as third runner-up and $5M for accelerating the natural process of rock weathering to permanently remove atmospheric CO2 and boost soil health.
XFACTOR Awards were given to Planetary and Project Hajar for demonstrations that met competition requirements in Ocean and Air pathways, respectively. Planetary’s solution, with operations in Canada, enhances the ocean’s natural ability to fight climate change through ocean alkalinity enhancement. Project Hajar, a partnership between Aircapture and 44.01, removes atmospheric CO2 using direct air capture and mineralizes it in peridotite rock formations deep underground in the United Arab Emirates’ Hajar mountains.
To learn more about XPRIZE Carbon Removal, including the runners up and all 20 finalist teams, head to https://xprize.org/carbonremoval.
Sign up for XPRIZE's monthly newsletter, The XCHANGE, for more on XPRIZE innovators and world-changing impact: https://xprize.org/get-involved
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ABOUT XPRIZE
XPRIZE is an established global leader in designing, launching, and executing large scale competitions to solve humanity’s greatest challenges. Our mission is to inspire and empower humanity to achieve breakthroughs that accelerate a hopeful future for all. Our unique model democratizes innovation by incentivizing crowd-sourced, scientifically viable solutions to create a more equitable and abundant future for all. Donate, learn more, or join a team at xprize.org. Sign up for our newsletter here. https://xprize.org/get-involved
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