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

Download on the App Store

Download on the App Store

Get it on Google Play

FAQs about Earth Notes:

How many episodes does Earth Notes have?

The podcast currently has 51 episodes available.

Earth Notes episodes:

November 25, 2025 Earth Notes: The Hartley Mammoth Site
In 2013, hiker Gary Hartley stumbled upon the fossilized remains of two mammoths in the Rio Puerco Canyon on the Colorado Plateau in northern New Mexico.
...more
2min
November 12, 2025 Earth Notes: Clovis Culture and Megafauna
The Clovis people hunted mammoths and other Ice Age giants more than 13,000 years ago. Archaeologists are uncovering what happened when those animals disappeared.
...more
2min
November 05, 2025 Earth Notes: Clovis Culture
The Clovis people hunted mammoths across the Southwest more than 13,000 years ago. Archaeologists are still uncovering what their tools and camps reveal.
...more
2min
October 29, 2025 Earth Notes: Spiders That Hear Through Their Webs
Some spiders don’t just spin webs — they listen through them. Researchers found that orb-weavers can sense vibrations on their silk to detect prey and danger.
...more
2min
October 22, 2025 Earth Notes: Witches' Broom
On a walk through the woods, you might see a strange-looking growth up in the branches of a tree. It’s called witches’ broom.
...more
2min
October 15, 2025 Earth Notes: Mexican Spotted Owls & Changing Landscapes
Woodlands in western North America are changing fast. The Mexican Spotted Owl is an emblematic, threatened species that feels the effects of these transitions.
...more
2min
October 08, 2025 Earth Notes: Biochar
Sometimes, something we think of as waste can be made valuable again. Consider biochar.
...more
2min
October 01, 2025 Earth Notes: Eco-friendly Grand Canyon Steam Train
The 64-mile steam train service from Williams to the South Rim of the Grand Canyon began in 1901, when a ticket cost $3.95. An updated, eco-friendly version is still in use today.
...more
2min
September 24, 2025 Earth Notes: Black Bears and Wildfires
New research in New Mexico shows that black bears thrive in forests renewed by fire — especially when it means more berries, acorns and cover.
...more
2min
September 17, 2025 Earth Notes: Western Hercules Beetles
A creature inhabits northern Arizona that has every appearance of a diminutive rhinoceros.
...more
2min

FAQs about Earth Notes:

How many episodes does Earth Notes have?

The podcast currently has 51 episodes available.