What does cracking open green-shiny rocks in a German preschool have to do with feeding eight billion people without oil and gas? In this episode, Jesse sits down with Oliver "Oli" Jagoutz, professor at MIT and director of the Earth Resources Laboratory (ERL), for a wide-ranging conversation that travels from the Himalayas to the wastewater treatment plant — and makes the case that geology might be one of the most societally relevant sciences of the coming decades. Oli traces his winding path into the field: the son of a cosmochemist who dragged him along on mantle-sampling campaigns, a self-described "failed" almost-med-student who spent years climbing, traveling, and working as a nurse before discovering that he could inhale geology once he finally found it. His advice to late bloomers — it's not your age that matters, it's that you've figured out what you actually want. From there the conversation digs into the Kohistan arc, the spectacular tilted-on-its-side cross-section of ancient island-arc crust now exposed in the Himalayas, and what it tells us about how continental crust forms (magmatic differentiation, water, and density sorting). Oli explains why he came to believe the textbook story of the India–Asia collision was wrong — arguing the real collision happened closer to 40 million years ago, not 50 — and why that timing matters for understanding how mountain-building and tropical weathering of calcium- and magnesium-rich rocks may have reshaped global climate. That climate thread becomes the pivot point of the episode. Oli describes walking away from the decades-old "origin of continental crust" question to chase problems with real-world stakes, and lays out the four areas his lab now tackles: carbon sequestration, critical minerals, geothermal energy, and geological hydrogen. Along the way he challenges the standard weathering-CO2 story (betting instead on the organic side — clays protecting buried organic matter), and walks through a genuinely clever carbon-sequestration scheme that uses sulfur-reducing bacteria and industrial waste gypsum to lock up carbon while making money by recovering elemental sulfur — a chemical the world will desperately need for fertilizer in a post-oil economy. The episode closes on practical wisdom for students: master the fundamentals, stay broad, actually go to the talks (not just the beer), use tenure to fund "Neverland science," and recognize that an outsider's perspective — connecting dots others haven't — is often where the best ideas come from. Oli also explains how AI-driven, probabilistic "hygrometry" of whole-rock data is opening a new path for mineral prospectivity, and why he thinks metamorphic petrology — the chemistry of hot fluids reacting with rock underground — is the science of the future for mining, energy, and carbon storage alike. In this episode How a cosmochemist dad and a broken finger started a career in geologyWhy coming to the field "late" can be an advantageThe Kohistan arc and the puzzle of how continental crust is madeRe-dating the India–Asia collision — and why ~40 Ma changes the climate storyWeathering, CO2 drawdown, and the case for the organic carbon pathwayTurning sewage, gypsum, and bacteria into profitable carbon sequestrationSulfur, fertilizer, and the hidden product tree of oil and gasCritical minerals, geothermal, and geological hydrogen at MIT's ERLAI + whole-rock geochemistry for finding copper depositsWhy metamorphic petrology is the way of the futureAdvice for students who want to use geology to solve big problemsOli's "best day as a geologist" About the guest Oliver Jagoutz is a professor at MIT and director of the Earth Resources Laboratory. His work spans igneous and metamorphic petrology, the tectonic evolution of the Himalayas, links between mountain-building and climate, and applied geoscience for energy, critical minerals, and carbon sequestration. Memorable quotes "Don't get discouraged when the community thinks you are wrong. You're probably right.""Just because I haven't worked on it doesn't mean I don't have anything to offer.""If you can't make it a business, it won't work.""Every day I go into the office and think: today I'm gonna find something awesome."Download the CampGeo app now at this link. On the app you can get tons of free content, exclusive images, and access to our Geology of National Parks series. You can also learn the basics of geology at the college level in our FREE CampGeo content series - get learning now! Like, Subscribe, and leave us a Rating! —————————————————— Instagram: @planetgeocast Twitter: @planetgeocast Facebook: @planetgeocast Support us: https://planetgeocast.com/support-us Email: planetgeocast@gmail.com Website: https://planetgeocast.com/
