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.

Arizona’s Aubrey Valley just west of Seligman is home to an animal until recently considered one of the most endangered mammals in the world.

philarmitage.net

The Colorado Plateau has seen its share of energy booms and busts. In eastern Utah, another one may be poised to begin.

Arid grasslands once covered significant parts of the Southwestern states — as much as 24 million acres in Arizona, for example. American pronghorn were widespread in these open spaces, along with many other grassland-dependent wildlife species. 

On Sept. 3, 1964, President Lyndon Johnson signed the National Wilderness Preservation System Act. With the stroke of a pen, 9 million acres of federal land in the United States was designated as wilderness — with a capital “W.”

Courtesy photo

In the 19th century, William Henry Jackson introduced many Americans to the scenic wonders of the country’s West — and to the power of landscape photography.

One of the enduring mysteries of the Colorado Plateau is why the area’s ancient Puebloan population dropped to almost zero in the late 13th century, after peaking at as many as 40,000 people just 30 years earlier.

When Bea Cooley and Brooks Hart headed down Oak Creek Canyon to do some birding last winter, they had no idea just how close their bird encounters would be.

On the Colorado Plateau, life begins anew when the monsoon rains come — especially for native amphibians like the northern leopard frog. This beautiful, spotted, greenish-brown frog pays close attention to moisture, and starts to move on humid days and rainy nights.

Can a plant that grows in only three national forests in Arizona survive all that today’s changing environment can throw at it? 

Sherry Sperry

Soon after the Slide Fire burned 22,000 acres in, and around, Oak Creek Canyon in northern Arizona, researchers from the Forest Service Burned Area Emergency Response - or BAER Program - took stock of its impact on sensitive wildlife species.

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