"What we're really talking about are two incredible extreme events." Scientists sound the alarm after Antarctic sea ice ...

The Arctic Ocean is likely to be effectively free of sea-ice by the end of summer at least once by 2050, and possibly even sooner. As the graph below shows, it's already experienced steep declines ...

The Arctic frequently experiences temperatures that support the formation of mixed-phase clouds that contain supercooled ...

Continuously hotter summers and less sea ice are remaking the Arctic. Some researchers wonder what opportunities might appear ...

These findings underscore the critical role of sea ice in regulating Arctic temperatures and hint at broader implications for ...

Earth from space In 2011, a ghostly depression, known as "the mitten," appeared on the surface of and ice sheet in Greenland after the unprecedented collapse of a concealed subglacial lake.

Those temperatures have a particularly damaging effect in the Arctic. Sea ice covers more than 14 million square kilometers (5.6 million square miles) at its maximum point each year. The ice sheet ...

Back in the 19th Century there was a race to map and navigate the Northwest Passage through the Arctic ... powered ice-breakers and develop port infrastructure along the Northern Sea Route.

Arctic sea ice has thinned significantly over the past ... and cars. Tans shows me a graph depicting levels of three key greenhouse gases—CO2, methane, and nitrous oxide—from the year 1000 ...

“The Arctic is changing faster than anywhere else on the planet,” says Heinerth. “And it’s really evident here.” Sea ice is dynamic. It expands and contracts, melts and freezes; it’s ...

Rising temperatures are thought to reduce the number of ice crystals in clouds, leading to the formation of liquid-dominated clouds. However, a new study has found that Arctic warming is causing an ...