Farming Releases Carbon From The Earth's Soil Into The Air. Can We Put It Back?

Traditional farming depletes the soil and releases carbon dioxide into the atmosphere. But decades ago, a scientist named Rattan Lal helped start a movement based on the idea that carbon could be put back into the soil — a practice known today as "regenerative agriculture."

NPR food and agriculture correspondent Dan Charles explains how it works and why the idea is having a moment.

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