Dan Fagre

Dan Fagre, a climate change researcher with the U.S. Geological Survey, shows US Interior Secretary Sally Jewell a photo of Glacier in 1914
Nicky Ouellet

Thursday was a big day in Glacier National Park.

The Park Service turned 100, and to celebrate, Secretary of the Interior Sally Jewell made a pilgrimage of sorts up Going to the Sun Road to see the park’s waning namesakes. She called it, "an incredible reminder of why the NPS was America's best idea."

Brianna Mills

As part of our ongoing series in Montana Public Media's "Climate Week", tonight we focus on how climate change is impacting Glacier National Park.