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The abandoned Copper River and Northwestern Railway near Strelna in south-central Alaska illustrates how building a railroad on permafrost thaw can cause the railroad bed to settle unevenly.

Riding the Permafrost Express

Researchers use innovative techniques to protect the newly constructed Qinghai-Xizang railroad across the Tibetan Plateau from permafrost.
Feature Article
July 28, 2020
The Yangtze Delta is home to more than eighty million people in an area only a little larger than the state of Indiana.

Repatterning the World

As wildlands shrink, scientists study the ecologies that people have tamed.
Feature Article
July 28, 2020
The NSCAT image above shows Typhoon Violet near Japan in 1996.

Reckoning with Winds

NSCAT wind vectors and SSM/I precipitable water color images reveal the physics in action for typhoons.
Feature Article
July 28, 2020
The image above shows mean ocean temperatures in the Pacific (in degrees Celsius)

Questioning Convection

Scientists use ENSO as a test for a climate model examining the change in heat trapped by greenhouse gases.
Feature Article
July 28, 2020
The image above shows SSM/I sea ice minimum from 1979

Polar Paradox

Melt caused by climate warming may increase sea ice extent in the polar regions.
Feature Article
July 23, 2020
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