Earth Notes

The Colorado Plateau is one of North America’s human and environmental treasures. Ancient cultures have called this land of sun-baked deserts and lush mountain landscapes home for centuries. Earth Notes, KNAU’s weekly environmental series, explores the Plateau by telling stories of the intricate relationships between environmental issues and our daily lives.

Rooted in science and wrapped in human interest, the two minute long segments encourage listeners to think of themselves as part of the solution to environmental problems. Upbeat and informative, the program tries to foster hope and dampen despair about the environment, and motivate listeners to become more conscious and informed stewards of the Colorado Plateau.

Kurt Refsnider

Geologists know there’s no better place to see Earth’s history laid bare than on the Colorado Plateau. Prescott College professors Kurt Refsnider and Kaitlyn Boyle make the subject come alive for their students in a novel way—from the seat of a bicycle. 


Earth Notes: Honeypot Ants

Aug 30, 2017
Gary Alpert

Feast or famine is the watchword in the Colorado Plateau’s unpredictable climate. To survive lean times, honeypot ants, common in the region, have devised a unique strategy.  


Jesse Barber

Many insects and spiders rely on sounds and vibrations to find food, meet mates and detect predators. So it’s likely they’d be sensitive to the roar of heavy machinery. 


Earth Notes: Quiet Parks

Aug 16, 2017
National Park Service

Bugling elk, rolling thunder, the delicate trill of a hummingbird’s wings. These natural sounds can be heard in America’s national parks—some of the quietest places on Earth. 


Earth Notes: Hog-Nosed Skunks

Aug 9, 2017
Brandon Holton/NPS

One evening in 2012, a river runner in Grand Canyon National Park encountered an odd-looking skunk. It had a large, pig-like nose pad for rooting, a broad white stripe from head to tail, and powerful front limbs. 


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