environment

Jackie Banks, US Forest Service SW Region, Kaibab National Forest

Scientists want the public’s help to document the biodiversity of the Kaibab National Forest. From the Arizona Science Desk, Melissa Sevigny reports on a new citizen science project.

Earth Notes: Drones in the Woods

Dec 28, 2016
Michele James

An exciting tool is providing a new way to better determine the effectiveness of restoration projects in northern Arizona forests. 


Lowell Observatory

If you look toward the eastern horizon just before dawn on a clear moonless night, you should see a ghostly white glow shining up through the dark sky.  This is zodiacal light, caused when passing comets and colliding asteroids shed space dust. That dust scatters sunlight upwards well before sunrise.


Melissa Sevigny

The Grand Canyon is running short on sand. Sediment that once washed down the Colorado River to form beaches is now trapped behind Glen Canyon Dam. For two decades river managers have released artificial floods to rebuild the beaches … but it’s not clear if the river has enough sand for these experiments to work in the long run. That’s what scientists want to find out.

Tom Brownold / www.tombrownold.com

It takes a very special kind of mule to carry visitors to Phantom Ranch at the bottom of the Grand Canyon. 


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