For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...

A salty surge in the Southern Ocean is melting Antarctic sea ice from below — and causing dramatic changes scientists didn’t ...

Arctic sea ice, not a thick ice shelf like what we observe in Antarctic today (above), shaped the far north for 750,000 years. Photo credit: Matthias Forwick.

For years, scientists have debated whether a giant thick ice shelf once covered the entire Arctic Ocean during the coldest ...

Ice loss in Antarctica and its impact on the planet—sea level rise, changes to ocean currents and disturbance of wildlife and ...

The dramatic loss of sea ice around Antarctica has occurred with the re-emergence of the Maud Rise polynya in the Weddell Sea ...

Drilling down Next winter, this international team is travelling to Scott Base, a New Zealand research station at the edge of the Ross ice shelf in west Antarctica. From there, the journey ...

What's happening? In a clip from a podcast, Brent Minchew of the Arête Glacier Initiative outlined the best and worst-case scenarios that may result from the loss of Antarctic sea ice. Even in the ...

A 1550 square km (963 sq mi.) iceberg, designated A81 broke off Antarctica’s Brunt Ice Shelf. A time-lapse of the 'calving process' was captured by satellites. Credit; ESA - European Space Agency ...

The collapse of the world’s second-largest ice sheet would drown cities worldwide. Is that ice more vulnerable than we know?