A study published in Nature on Thursday highlights that the rapid decline of Antarctic sea ice may represent a crucial tipping point for the global climate.
The research, which analysed ice cores, ship logs, and observational data, found that “a regime shift has reduced Antarctic sea-ice extent far below its natural variability of past centuries, and in some respects is more abrupt, non-linear and potentially irreversible than Arctic sea-ice loss.”
Shrinking ice reduces solar reflection, accelerating global warming and weakening the Antarctic Overturning Circulation, which regulates ocean heat, nutrients, and weather patterns.
Nerilie Abram, the study's lead author noted, “Once we start losing Antarctic sea ice, we set in train this self-perpetuating process.”
The loss of ice is already affecting wildlife, including emperor penguins that breed on the ice and krill that feed below it. Warming surface waters are also diminishing phytoplankton populations that absorb large amounts of atmospheric carbon.
Even with efforts to reduce carbon dioxide emissions, the study warns that Antarctic sea ice loss may continue over centuries, emphasizing the urgent need for climate action.
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The chief of staff of Ukrainian President Volodymyr Zelenskyy said on Wednesday that work was underway on establishing the military component of secur...
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Juneau, Alaska, is on high alert as floodwaters from the Mendenhall Glacier threaten to reach record levels, forcing residents in vulnerable areas to evacuate immediately.
Wildfires driven by powerful winds swept through Greece on Friday, from the southern outskirts of Athens to the region near Ancient Olympia.
Southern China is battling the aftermath of record-breaking monsoon rain, as flooding disrupts travel, threatens public health, and raises economic concerns.
Japan is facing record-breaking heat, with temperatures hitting 41.8°C, sparking health emergencies and threatening the country’s rice harvest.
A powerful eruption at Japan’s Shinmoedake volcano sent an ash plume more than 3,000 metres high on Sunday morning, prompting safety warnings from authorities.
According to the German Research Centre for Geosciences (GFZ), a magnitude 5.7 earthquake struck the Oaxaca region of Mexico on Saturday.
The UK is gearing up for Exercise Pegasus 2025, its largest pandemic readiness test since COVID-19. Running from September to November, this full-scale simulation will challenge the country's response to a fast-moving respiratory outbreak.
Honduras has brought back mask mandates as COVID-19 cases and a new variant surge nationwide.
Kuwait says oil prices will likely stay below $72 per barrel as OPEC monitors global supply trends and U.S. policy signals. The remarks come during market uncertainty fueled by new U.S. tariffs on India and possible sanctions on Russia.
Ocean acidification, caused by rising CO₂, is silently reshaping marine life, threatening shellfish, coral reefs, and coastal communities. Scientists warn its impacts could ripple through food chains, economies, and human livelihoods unless urgent action is taken.
Residents in the Bahamas and Turks and Caicos braced themselves on Monday as Hurricane Erin, the first of the Atlantic season, passed nearby as a Category 4 storm, with winds of 225 kph.
The hurricane was located about 170 km north of Anguilla, with maximum sustained winds near 255 km/h, according to the National Hurricane Center (NHC).
Talks at the United Nations in Geneva to establish a global legally binding treaty on plastic pollution went into overtime on Thursday, with discussions adjourned to Friday.
SOCAR Türkiye, a subsidiary of the State Oil Company of the Azerbaijani Republic, has announced about a cooperation with Turkish Airlines in the field of sustainable aviation fuel. The move is aimed at complying with Türkiye's goal of reducing aviation emissions by 5% by 2030.
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