At 31,700 square miles, Lake Superior is the largest freshwater lake in North America. When measuring surface area, it ranks as the largest freshwater lake on the entire planet.

How has climate change affected that much water? Filmmaker Ian Planchon of Minneapolis, Minnesota, started out making a film about surfing on Lake Superior, but what he found out has become a much bigger story. In this episode of Lake Superior Podcast, Walt Lindala and Frida Waara speak with Ian and learn more about his latest film “Freshwater.”

Sponsored by Cafe Imports, a Minneapolis-based importer of fine, specialty green coffees. Independently owned and operated since 1993, Cafe Imports has been dedicated to decreasing its impact on the earth through renewable energy, carbon neutrality, and by supporting conservational efforts in places where quality coffee is grown and also, where quality coffee is consumed. Where does your coffee come from?