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Earth Notes

About This Section
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.

  • A large brown moth with whirring wings drinks from a purple flower
    WikiCommons
    At dusk on summer nights, white-lined sphinx moths flutter like hummingbirds around flowers of datura and evening primrose. Their dark wings bear light bands, and the underwings are cotton-candy pink. They hover above a flower only long enough to dip their long hollow tongues deep into the sugar-rich nectar stores. Then they fly off to another source, exhibiting some of the fastest flying speeds in the lepidopteran world.
  • A dry riverbed winds through a rocky desert, with a ridge in the background and dark-colored rocks, pink soil, and one hedgehog cactus in the foreground
    Melissa Sevigny
    /
    KNAU
    Most people think of a drought as a long, slow-moving disaster. But there is a growing number of “flash droughts” around the world. Like flash floods, these are short, intense events that arrive without warning. Flash droughts can develop in less than week and bring intense heat and dryness.