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.

Earth Notes: Juniper and Ash

Nov 24, 2016
Jim Harrigan

Nine hundred years ago the eruption of Sunset Crater volcano must have been a brilliant spectacle. Ultimately, nearly 750 square miles of northern Arizona were blanketed in cinders and ash. After the destruction, life slowly returned. 


Earth Notes: Vibes at Rainbow Bridge

Nov 16, 2016
NPS/B. Lee

Rainbow Bridge in southeast Utah is one of the largest natural bridges in the world. And though the immense sandstone span looks solid and unmoving, scientists are finding out otherwise. 

 

Tim Evanson

Long before Europeans arrived in the Western Hemisphere, turquoise was an exceptionally prized stone—used in jewelry and masks, for example. But the blue-green mineral doesn’t occur naturally in many of the same places where such artifacts have been found in the Southwest. 


"In & Around the Grand Canyon"

“Few countries in the world present so marvelous a variety of scenic features as Arizona,” wrote author George Wharton James almost a century ago. “What a wonderland of wild cactus growth, of solitude, of mystery, (and) of silence it is!” 


Earth Notes: The Tarantula Hawk Wasp

Oct 26, 2016
Dyer Lytle

On Halloween, all you ghosts and goblins will want to beware of the beautiful but deceiving  lady, the tarantula hawk wasp. She’s dressed up in shining blue-black with gossamer orange wings, her antennae elegantly curled.


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