USARC

Stratospheric Polar Vortex Shapes Arctic Surface Climate Via a Radiative Pathway https://loom.ly/pDVZZvs

Stratospheric polar vortex shapes Arctic surface climate via a radiative pathway - Nature Communications This study discusses a stratosphere-to-surface radiative pathway in the Arctic, whereby stratospheric anomalies modulate high cloud cover through static stability, driving pronounced surface temperature and sea ice variations on subseasonal time scales.

Nature Study: More Icebergs in the Arctic https://loom.ly/vG0n6bU

Nature study: More icebergs in the Arctic The number of icebergs in the Arctic has increased sharply since the 2000s. This is due to the destabilisation of large glaciers in north-east Greenland and parts of the Russian Arctic as well as the increasing mobility of sea ice. The result: Stones rain down from the melting icebergs, forming new....

A Snapshot in Time: Ancient Ground Squirrel Droppings, Dating Back 700,000 years, Reveal Rich Details About Evolutionary History of the Arctic https://loom.ly/jQFHTDo

A snapshot in time: Ancient ground squirrel droppings, dating back 700,000 years, reveal rich details about evolutionary history of the Arctic Ground squirrel droppings, preserved for millennia in the Yukon’s deep permafrost, have yielded an enormous amount of environmental DNA from dozens of species of plants, insects, microbes and large mammals, offering detailed genetic information about an environment that no longer exists.