Episode 93 features Andrés from Tierra Prieta, recorded in Monterrey, Mexico. Andrés breaks down biochar carbon credits, the realities of carbon removal, and why this approach works best when treated as a focused tool rather than a silver bullet.

In this conversation, we trace Andrés’ path from an engineering project turning spent coffee grounds into biodiesel… to discovering biochar through academic research… to building a real business that’s now scaling fast (35 employees, sold out for years). We also unpack the uncomfortable truths: additionality, MRV (measurement, reporting, verification), why credit quality matters, why most pyrolysis tech is overcomplicated, and why building the bio side first beats chasing credits first.

If you’re a founder or operator who wants to understand climate tech without the hype, this one’s for you. ...