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.

Springs are magical places where groundwater comes to the surface — lush green patches that are among the most diverse, productive, and threatened ecosystems on Earth.

Credit: Wikipedia Commons.

Migratory birds are among the forces that stitch the globe together. Biologists have long known that animals can carry seeds and spores on their bodies, or may eat them and spread them in their waste.

NASA/JPL-Snow Optics Laboratory

  For those living in the American Southwest, dust is as much a part of the environment as dryness and sunshine. Tiny particles seem to get into everything, including houses, cars, and noses.

While dust can be annoying, scientists believe it plays a vital role in the region’s ecology. It appears to provide essential minerals and chemical compounds to high-mountain ecosystems, just as seafaring salmon bring ocean nutrients high up into freshwater streams.

  This year, Walnut Canyon is celebrating a hundred years of protection as a national monument—protection that came none too soon because its prehistoric sites were being seriously damaged.

It was people known to archaeologists as the northern Sinagua who built some three hundred rooms in the limestone alcoves of this hidden canyon near the San Francisco Peaks. They lived, farmed, and hunted in the canyon and on the rim from the 1100s into the mid-1200s.

National Park Service

  It was a long way from the civilized college town of Ann Arbor, Michigan, to Mexican Hat, Utah, back in the summer of 1937. But Dr. Elzada Clover made the trip.

A botanist at the University of Michigan, she had an ambitious dream to explore the little-known plant life of the Colorado River region. Cacti were her specialty. Where better to find them than the Southwest deserts?

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