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

New research challenges the long-held belief that the Arctic Ocean was covered by a massive ice shelf during ice ages.

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

Climate scientists in the United States are to be cut off from satellite data measuring the amount of sea ice — a sensitive ...

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 ...

David Callaway and Douglas McIntyre, Editors-in-Chief at Climate Crisis 24/7, discuss the unintended “silver lining” of ...

As sea ice melts and opens new routes for maritime traffic in the Arctic, the environmental fallout caused by vessels burning fossil fuels adds to global warming, which in turn melts more sea ice.

In Alaska, we must also be vigilant to another brewing geopolitical hotspot, the melting Arctic. Arctic competition is exacerbated by climate change. When most Americans think about climate change, ...

Arctic sea ice has receded ever further, including increasingly in winter when the extent of sea ice is at its most prominent ...

A study published Monday in the Proceedings of the National Academy of Sciences found that increases in salinity in seawater ...

President Donald Trump has approved a massive $8.6 billion budget to expand the U.S. Coast Guard's icebreaker fleet, aiming ...

This winter the maximum extent of Arctic sea ice was the smallest it has been on record. As the ice cap melts, rising seas could destroy coastal cities and swallow low-lying islands.