Glaciers around the world are melting because of climate change. Yet, while glaciers might be smaller than they once were, that’s not stopping tourists from flocking to see them. We talked with Heather Purdie, a glaciologist and former glacier guide, about how exactly glaciers are changing and how glacier tourism is adapting to these changes.

This episode was produced by Molly Magid and mixed by Collin Warren, with production assistance from Jace Steiner.