KNAU

Earth Notes: The Wetherill Photo Collection

By • Dec 4, 2019
Arizona State Museum Photograph Collection, University of Arizona

By the turn of the 20th century, few Anglos had laid eyes on many of the Southwest’s natural wonders. Knowledge of Rainbow Bridge, Monument Valley and what would eventually become Zion National Park remained mostly with area tribes. Archaeological sites like Mesa Verde in southwest Colorado were also largely unexcavated.

Earth Notes: Four Corners Potato

By • Nov 27, 2019
Bruce Pavlik/the-journal.com

Stone metates at an archeological site in Utah still bear faint traces of the native Four Corners potato. It’s the leftovers from a meal that happened more than 10,000 years ago.


Earth Notes: Arthropods and Long-Term Climate Change

By • Nov 20, 2019
D.C. Lightfoot/UNM

A rapidly changing climate means there’s no longer a “typical” year on the Colorado Plateau. That’s confirmed by a long-term study of bugs in the Jemez Mountains of New Mexico.


Earth Notes: The Navajo Generating Station Goes Dark

By • Nov 13, 2019
Ryan Heinsius / KNAU

Sometime next year the skyline of Page will look very different. That’s when the owners of the Navajo Generating Station plan to demolish the three 775-foot smokestacks that, in the last four decades, have become synonymous with the area’s otherwise iconic natural beauty.


Earth Note: Birds and Noise

By • Nov 6, 2019
Dave Keelinghttps/floridamuseum.ufl.edu

It’s well known that extracting natural gas for fuel contributes to global warming. But animals that live where these resources are mined face another problem: excessive noise.


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