Y Combinator Startup Podcast The World's First Commercial Mobile Carbon Capture Device
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Oct 9, 2025 Paul Gross, Founder and CEO of Remora, is pioneering mobile carbon capture devices for trucks and trains. He discusses how they extract CO2 directly from moving vehicles and sell it for industrial reuse. Paul shares insights on the advantages of point-source capture over direct air capture, his unconventional journey into this tech space, and the benefits of in-house manufacturing. He also reveals ambitious goals for scaling to other vehicles and the future potential of their technology in transforming the transportation industry.
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First On-Vehicle Carbon Capture Demo
- Paul showcases the first carbon capture system installed on a commercial truck and train.
- He demonstrates captured CO2 being used to carbonate tap water to show purity and immediacy.
Transport Is The Biggest Emissions Target
- Transportation is the largest U.S. emissions sector, responsible for 29% of emissions.
- Targeting hard-to-electrify segments like long-haul trucking and freight trains offers outsized climate impact.
Founding From A College Insight
- Paul began by researching a U.S. CO2 shortage he learned about in college and modelled the economics himself.
- He partnered with Christina Reynolds, a PhD expert, and they co-founded the company together.