Chemical signatures of marine organisms reveal that seasonal sea ice, not a massive ice shelf, persisted in the southern ...

The study draws from multiple data sources: the Automated Surface Observing System (ASOS); a 1996 study examining global ...

F OR MORE than four centuries, wave after wave of explorers experienced failure as they searched for an east-west maritime ...

After responding to two Chinese research vessels operating in the U.S. Arctic, the officials began monitoring three more ...

Arctic communities have long been noticing changes in the sea ice across Alaska, with ice setting up later most years and proving less dependable throughout the winter many years. The impacts have ...

Overall, Arctic sea ice area has declined for every month since 1979, according to National Snow and Ice Data Center data. Sea ice area on April 29 in both 1989 and 2024 was well below the 1979 ...

The Arctic Ocean could have its first ice free day as soon as 2027, an alarming new study reveals. Arctic sea ice has been melting at an unprecedented rate of more than 12% each decade, meaning we ...

The extent of Arctic sea ice has been monitored by satellites since 1978, before that we have only patchy observations that tell us little of the overall state. There’s a fair bit of year-by ...

This image, taken from a data visualization, shows Arctic sea ice minimum extent on September 11, 2024. The yellow boundary shows the minimum extent averaged over the 30-year period from 1981 to 2010.

In the Arctic, it will measure the elevation of the ice floes, compared to the water level. However, only about one-tenth of sea ice is above the water surface; the other nine-tenths lie below.

“Our finding that enhanced melting of Arctic sea-ice likely resulted in significant cooling in northern Europe in the earth’s past is alarming,” says Mohamed Ezat from the iC3 Polar Research ...