Dry Valleys (IMAGE)

American Institute of Biological Sciences

Dry Valleys

Caption

The McMurdo Dry Valleys are among the driest places on Earth. What water there is, stays frozen most of the time. An in-depth look at one warm period gives clues to how more flowing water could change these barren-seeming ecosystems.

Credit

Hassan Basagic/McMurdo LTER via CC by-SA 4.0

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