Episode

How a Minnesota startup is taking carbon out of the atmosphere

Podcast: Climate Cast
Published: Mar 13, 2026
Duration seconds: 286
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Canonical source: https://www.mprnews.org/episode/2026/03/13/how-a-minnesota-startup-is-taking-carbon-out-of-the-atmosphere
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Summary

Fossil fuels are by far the largest contributor to global climate change, accounting for nearly 90 percent of all carbon dioxide emissions. But there are people here in Minnesota working on solutions for managing those emissions. MPR News chief meteorologist Paul Huttner spoke with Paul Dauenhauer, a Distinguished McKnight University Professor at the UM College of Science and Engineering, about the start-up company Carba, of which he is a cofounder. Through Carba, they have developed a proprietary process that converts plant-based waste material into biochar, a stable material that sequesters carbon and can be buried underground for more than 1,000 years