(Jessica Cornelison / KCUR 89.3)

A vast ocean of grass and wildflowers once covered one-third of North America. But that diverse prairie biome is collapsing, partly due to greenhouse gases and to our obsession with trees. Humans have unleashed an aggressive canopy that’s swallowing the Great Plains. For ranchers, saving the environment means being a tree killer — not a tree hugger.

Up From Dust is hosted and reported by Celia Llopis-Jepsen and David Condos. This episode was written by Celia Llopis-Jepsen and produced by Mackenzie Martin with editorial support from Scott Canon and Suzanne Hogan. Mix by Celia Llopis-Jepsen and Byron Love.