Environment

Environment

Explaining climate change

An introduction to the causes of modern-day climate change, signs that the climate is already changing, and how climate change affects the environment and human well-being.

North Cascades glaciers are melting. Here’s why that matters

Jon Riedel, a geologist with North Cascades National Park, explains the impact of melting glaciers in this excerpt from "Keepers of the Beat," a 2013 documentary about his and other scientists' work to study Northwest glaciers.