Earth Notes

By KNAU Arizona Public Radio

Earth Notes, KNAU’s weekly environmental series, explores the Colorado Plateau by telling stories of the intricate relationships between environmental issues and our daily lives. Rooted in science and... more

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FAQs about Earth Notes:

How many episodes does Earth Notes have?

The podcast currently has 86 episodes available.

Earth Notes episodes:

March 04, 2026 Earth Notes: The Legacy of Hat Ranch
Hat Ranch near Williams, Arizona has a layered history of conservation and public life.
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2min
February 25, 2026 Earth Notes: Cottonwood Leaf Cooling
Fremont cottonwoods form a ribbon of green along Arizona’s rivers and streams. They have heart-shaped leaves which turn golden in fall and fluffy, cotton-like seeds.
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2min
February 18, 2026 Earth Notes: Signs of Passage on Route 66
Route 66 is known for roadside history, but the landscape also holds older signs of passage and human movement.
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2min
February 11, 2026 Earth Notes: Why Night Lighting Draws Winged Insects
Artificial light including flames have been known to attract moths and many other flying insects at night for centuries. Earliest written records of the behavior date back to the Roman Empire.
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2min
February 04, 2026 Earth Notes: The Ghostly Glow of Gegenschein
If you look toward the eastern horizon just before dawn on a clear, moonless night, you should see a ghostly white glow shining up through the dark sky.
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2min
January 28, 2026 Earth Notes: Coyote-Badger Cooperative Hunting
Coyotes and badgers are well-known predators of the American wilderness. What is not well known is that these two species, normally competing for the same prey, sometimes become hunting partners.
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2min
January 21, 2026 Earth Notes: The Future of Saguaros
Saguaro survival is now being challenged at all elevations by climate change.
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2min
January 14, 2026 Earth Notes: Ancestral Pueblo Water Conservation
Ancestral Puebloan peoples developed ingenious methods to collect, store, conserve, and utilize water.
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2min
January 07, 2026 Earth Notes: Climate Clues in a Grand Canyon Cave
The marvels of the Grand Canyon extend beyond its dramatic scenery. Underground, vast cave systems hold clues to the region’s future climate.
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2min
December 31, 2025 Earth Notes: Turkey Feather Blankets in the Ancient Southwest
Ancestral Pueblo people began making turkey feather blankets about 1,800 years ago, coinciding with the transition to settled agricultural life.
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2min

FAQs about Earth Notes:

How many episodes does Earth Notes have?

The podcast currently has 86 episodes available.