Earth Notes

Earth Notes
12:06 pm
Thu November 21, 2013

Earth Notes: Tracking Climate Change In Northern Arizona

Grand Canyon
Credit Northern Arizona University

In late September, the Intergovernmental Panel on Climate Change released its Summary for Policymakers for part-one of its  massive Fifth Assessment Report. Its message? Earth's climate is warming, and human influence on that warming is clear.

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Earth Notes
1:47 pm
Wed July 24, 2013

Earth Notes: Bee Houses

Bee House
Credit North Carolina State University

When you hear the word "bee", you're likely to think of the hard-working insects that produce the honey we use. But in North American, a wild diversity of native bees - more than 4,000 kinds - swamps that of honeybees, which were imported from the Old World.

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Earth Notes
7:14 am
Thu July 18, 2013

Earth Notes: Schultz Fire Habitat Islands

Fresh vegetation grows in the Schultz Fire burn area
Credit Kris Haskins

It's been 3 years since the Schultz Fire seared more than 15,000 acres on the San Francisco Peaks north of Flagstaff. About 2/3 of that area, mostly ponderosa pine and mixed conifer forest, was moderately to severely burned. But native plant species have been helping to restore the area.

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Earth Notes
5:27 am
Wed December 26, 2012

Earth Notes: The Mouse that . . . Whistles?

Grasshopper Mouse
Credit Utah Division of Wildlife Resources

At night, sharp-eared southwestern campers sometimes hear the sound of a fierce predator on the prowl.

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Earth Notes
5:16 am
Wed December 19, 2012

Earth Notes: How Dark Can the Night Sky Get?

Credit NASA

It’s well known that the sky gets darker as you get farther away from human sources of light.

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Earth Notes
5:53 am
Wed December 12, 2012

Earth Notes: A Sunny Future for Desert Power—But What About the Tortoises?

Agassiz Desert Tortoise
Credit Gerald and Buff Corsi © California Academy of Sciences

Sunshine is endemic to the desert Southwest. So is a venerable reptile, the Agassiz’s desert tortoise.

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Earth Notes
5:38 am
Wed December 5, 2012

Earth Notes: Eating the Wild

This year Americans will spend millions of dollars to eradicate weeds in yards, fields, and gardens. Meanwhile, a group of enthusiasts in Durango, Colorado, has come up with a different approach: eat the weeds!

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Earth Notes
5:00 am
Wed November 28, 2012

Earth Notes: Safeguarding Southwestern Bats

Braided Cave
Credit National Park Service

As winter approaches, some species of bats settle in to hibernate in caves. Lack of food and dropping temperatures drive them inside, where “carpets” of bats congregate on cave ceilings.

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Earth Notes
5:37 am
Wed November 21, 2012

Earth Notes: The Lovable Little Fellow of Clear Streams

The American Dipper
Credit US Fish and Wildlife Service

The Southwest may be dry, but it’s interwoven with rushing streams. Where they run cool and clear, they are often enlivened by what the naturalist John Muir described as a “singularly joyous and lovable little fellow.”

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Earth Notes
5:00 am
Wed November 14, 2012

Earth Notes: The Crown Fire - Carbon Connection

Credit BigDogGraphics

Forests constitute an important part of the “Carbon World Bank.” The organic matter in their leaves, wood, roots and soil stores a great deal of carbon absorbed from the atmosphere.

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