西伯利亚河的形成导致大量淡水流入喀拉海，从根本上改变了北冰洋和地球的气候。
sea ice
Posted inResearch Spotlights
Irtysh River Drove Arctic Sea Ice Expansion 3 Million Years Ago
The Siberian river’s creation caused a massive influx of fresh water into the Kara Sea and radically changed the Arctic Ocean and Earth’s climate.
Posted inEditors' Vox
Wheels Down for NASA’s Operation IceBridge
Over a 13-year period, almost a thousand flights surveyed land and sea ice across the Arctic, Antarctic, and Alaska, providing unique insights into how the polar regions are changing.
Posted inAGU News
Claire L. Parkinson Receives the 2020 Roger Revelle Medal
Claire L. Parkinson was awarded the 2020 Roger Revelle Medal at the virtual AGU Fall Meeting in December. The medal is for “outstanding contributions in atmospheric sciences, atmosphere-ocean coupling, atmosphere-land coupling, biogeochemical cycles, climate or related aspects of the Earth system.”
Posted inNews
Laser Flashes Shed Light on a Changing Arctic
An ongoing project in northern Alaska is using pulses of laser light to monitor anthropogenic activity, ice quakes, and marine wildlife.
Posted inResearch Spotlights
South Pole Ice Core Reveals History of Antarctic Sea Ice
Every summer, most of the sea ice near Antarctica melts away, but its saltiness leaves a permanent record that scientists can trace back for millennia.
Posted inNews
Arctic Report Card Founder Discusses the Fate of the Pole
Researcher Jackie Richter-Menge has reported on the status of the melting Arctic for the past 15 years. Her observations tell a story of “mind-blowing change.”
Posted inNews
Beast of the Central Arctic
Feast your eyes on Beast, the first remotely operated vehicle to brave the Arctic for 1 year.
Posted inNews
Polar Bears to Vanish from Most of the Arctic This Century
A “timelines of risk” model shows when and where population collapse begins as sea ice wanes in our warming future.
Posted inNews
Pollution over the Tibetan Plateau Linked to Sea Ice Loss in the Arctic
New research suggests an atmospheric connection between Arctic sea ice melt and anthropogenic aerosol pollution over the Tibetan Plateau.