Drive past a river in Colorado’s mountains and there’s a good chance you’ll see someone trying to land a trout. But now, scientists say, Colorado’s best trout-fishing rivers are in jeopardy because of climate change. A new study says trout habitat in the West will shrink by about half over the next 70 years. Kurt Fausch is a professor of fish biology at Colorado State University, and a co-author of the study. He speaks with Ryan Warner.

[Photo: James Jacobs]