Wind whips canyons into shape

As a force of nature, wind is usually afforded less respect than water. Sure, it can topple trees and, in extreme cases, peel roofs off houses. But it can’t carve mighty canyons like water can — or can it? A new study suggests that geologists may have underestimated wind’s role in shaping valleys in arid environments, both on Earth and on Mars.
 

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Julia Rosen

Rosen holds a doctorate in geology and is a freelance science writer based in Portland, Ore. She has served as both an intern and an interim staff writer for EARTH, has also written for the Los Angeles Times and AGU’s Eos, and occasionally hosts 60-Second Science podcasts for Scientific American. Find more of her work at www.julia-rosen.com.

Monday, July 13, 2015 - 06:00