A conservation group says pollution and climate change are among the pressures on rivers. A stretch of the Colorado River that flows through Grand Canyon National Park is the most endangered river.
LEILA FADEL, HOST: A new report out today from the conservation group American Rivers names the 10 most endangered rivers in the country. Alex Hager from member station KUNC takes us to one of them, a stretch of the Colorado River that runs through the Grand Canyon.
ALEX HAGER, BYLINE: To understand why a part of the drought-stricken Colorado River is in trouble, you have to start further upstream...