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The World's First Commercial Mobile Carbon Capture Device

In a bold attempt to revolutionize how we tackle emissions from heavy transport, a young entrepreneur is proving that deep tech innovation doesn’t require decades of experience—just vision, grit, and the right team. This is the story of Remora, a company building carbon capture systems that move with the vehicles they’re cleaning.
Remora, founded by Paul Gross with no engineering background, is pioneering mobile carbon capture technology for trucks and trains, capturing up to 90% of CO2 emissions directly from exhaust. Starting with just an idea during the pandemic, the company joined Y Combinator and rapidly scaled, now employing 43 people in Detroit. By manufacturing in-house and testing on real engines—including a full locomotive—they’ve accelerated development and proven the system’s efficiency. Their captured CO2 reaches beverage-grade purity, turning pollution into a valuable commodity. With $117 million secured and partnerships forming, Remora is expanding beyond transportation into oil and gas, shipping, and cement, aiming to capture one billion tons of CO2 annually.
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Remora captures CO2 from truck and train exhaust and sells it as beverage-grade CO2
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YC set a fast pace for the company from day one.
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The device can remove up to 90% of CO2 from semi-trucks' exhaust
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The technology can significantly reduce the country's carbon emissions, aiming to capture a billion tons a year