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This Green Earth

This Green Earth | September 30, 2025

By Claire Wiley,

Chris Cherniak

Published September 30, 2025 at 2:37 PM MDT

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Journalist Kevin Fedarko chronicles an ambitious and transformative journey with National Geographic photographer Pete McBride as they attempted a full traverse of the Grand Canyon on foot — a grueling 750-mile trek. (01:14)

Award-winning photojournalist Pete McBride tells the story of the Colorado River through photography, essays and a book titled, "The Colorado River: Chasing Water." (27:27)

This Green Earth

Claire Wiley

Claire is the producer and co-host of This Green Earth and a volunteer DJ on Tuesdays from 10 a.m. to 3 p.m.

See stories by Claire Wiley

Chris Cherniak

Chris is the co-host of “This Green Earth”, a weekly radio show covering environmental news and issues. Broadcast on KPCW, the NPR affiliate for Park City. He also sits on the boards of Recycle Utah and Summit Community Power Works.

See stories by Chris Cherniak