New satellite observations of polar stratospheric clouds have advanced our understanding of how, when, and where they form, their composition, and their role in ozone depletion.
Last winter, an unprecedented high-pressure system over the Arctic drove nearly a quarter of old sea ice into warmer waters, putting it at greater risk of melting.
When permafrost thaw reaches concentrations of ice underneath the surface, it may trigger local soil instability.
A new study shows that icebergs may initiate submarine landslides when they collide with the seafloor.
A new study demonstrates the benefits of crowdsourcing science using sailboats to better understand the impact of melting sea ice in the Arctic.
An ongoing project in northern Alaska is using pulses of laser light to monitor anthropogenic activity, ice quakes, and marine wildlife.
Scientists have found a methane reservoir below the permafrost seabed of the Laptev Sea—a reservoir that could suddenly release large amounts of the potent greenhouse gas.
By combining demography data with permafrost maps, researchers provide a first count of the population on permafrost and predict its imminent decline.
Researchers have identified a high-latitude phenomenon that looks remarkably like a tropospheric hurricane, with spinning arms of plasma and a shower of electrons.
The increase may be due to climate change, researchers suggest, but the trend hasn’t been observed in other lightning data sets.