How Much Carbon Can Farm Soil Store? Nobody Knows

This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. Dirt, it turns out, isn’t just worm poop. It’s also a humongous receptacle of carbon, some 2.5 trillion tons of it — three times more than all the carbon in the atmosphere. That’s why if you ask a climate wonk about the U.S. farm bill — the broad, trillion-dollar spending package Congress is supposed to pass this year (after, Read More