soil

Brian Seifferlein / Harvest Public Media

By some estimates, producing our food consumes about a fifth of the nation’s energy supply. It takes a lot of diesel to move tractors and semis around the farm, and electricity to pump water and dry grain. But some farmers are trying to cut back on the coal and gas they use and make our food system more energy efficient.

When winter comes to Greg Brummond’s farm in northeast Nebraska, he spends his days in the machine shed fixing all the things that broke through the year.

Amy Mayer / Harvest Public Media

The world’s soil is in trouble, even in the fertile Midwest. Some experts warn that if degradation continues unchecked, topsoil could be gone in 60 years. That has implications for agriculture and the broader environment.