Antarctic sea ice has reached its maximum extent after the cold dark winter months. According to the preliminary data from the US National Snow and Ice Data Center (NSIDC), the maximum extent remained...

Since 2016, Antarctic intermediate water has become saltier, denser and deeper, raising questions about ocean heat storage, circulation and climate change risks

Antarctic Sea Ice Loss Is Salting the Ocean's Middle Layer

Marine ecologists fear climate change is transforming the ecosystem near the border of Victoria and South Australia.

Marine ecologists fear climate change is transforming the ecosystem near the border of Victoria and South Australia.

Attached: 1 image State of the Cryosphere Report 2026 – The Cost of Overshoot Overshooting the 1.5°C #ParisAgreement target will bring large-scale, and in many cases irreversible, impacts from the Earth’s melting #ice sheets, #permafrost, g#laciers, #SeaIce and polar #oceans. This will bring a catalogue of dangerous global risks. Many are already visible today, including the devastating #floods on the #Nepal-China border in August that killed thousands, accelerating sea-level rise that threatens hundreds of millions of people globally and potentially irreversible disruption to the planet’s oceans and weather systems. The State of the Cryosphere 2026: The Cost of Overshoot report was released jointly alongside the #UNEP/ICCI report Overshoot and the Cryosphere: Averting Global Meltdown on November 2, 2026. The two reports set out the global impacts of ice loss with overshoot, exploring which ones are locked in, and how urgent action – especially the transition from #FossilFuels – can still stop or slow the worst of this damage. Overshoot must be kept to the absolute minimum and temperatures returned to below 1.5°C as quickly as possible. Current levels of warming are already unsafe for the #Arctic, the #Antarctic, mountain #glaciers and the polar oceans. State of the Cryosphere 2026 describes new science and observations from the past year, such as Switzerland’s loss of 20% of its glacier ice in the past five years. Other impacts range from accelerating sea-level rise due to rapid ice loss, to increasing water shortages and mountain hazards as glaciers disappear and snow drought conditions spread. Although returning to 1.5°C will slow ice loss, a truly ‘safe’ temperature target for Earth’s ice is now thought to be closer to 1.0°C or even below over the coming centuries. “For decades now, cryosphere scientists have been sounding the alarm: ice matters, and for each rise in CO2, the global impacts from its loss will grow all more devastating. It is high time we listen, and act accordingly.” https://iccinet.org/statecryo26/ https://doi.org/10.5281/zenodo.23478059 #ClimateScience #ClimateCatastrophe #Cryosphere #BudhiGandaki

Exceeding 1.5C of global warming will have "irreversible" consequences for glaciers, sea ice and the Earth's frozen regions, two U.N. reports warned on Monday, calling for urgent action.

This work investigates the effect of the 2016 regime shift in Antarctic sea ice on Antarctic Intermediate Water (AAIW). The authors show that decreased sea ice and reduced freshwater subduction lead t...

A key layer of water around Antarctica is getting saltier, potentially shifting storm tracks and accelerating sea-level rise, new research shows.