Scientists discover a tipping point that took place in 2000, where El Niño’s effect on sea ice loss in Siberia was amplified.

As human activity grows in the Arctic, underwater noise is spreading through icy waters, disrupting how many animals communicate.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

In the tropics, the border between troposphere and stratosphere—the tropopause—sits at around 20km, far above any normal aircraft’s ceiling. But its height drops as you move away from the equator. By the time you get to 60°N and 60°S it is low enough for airliners to rise above it.

In 2006, scientists released the first version of the Arctic Report Card, now a staple at the Fall Meeting of the American Geophysical Union.

Despite the war in Ukraine, Russia has not scaled down its commitment to develop its Arctic region from the Barents Sea to the Bering Strait. As analyzed in earlier publications, the Northern Sea Route connects Russia to China,

A conveyor belt of ocean water that loops the planet and regulates global temperatures could be heading for a tipping point.

The area most U.S. Arctic strategists think needs the most immediate development is not Greenland but the Bering Sea, almost 3,000 miles away.