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.
Kurds in the northeastern Syrian city of Qamishli voiced caution on Monday (19 January) after the Kurdish-led Syrian Democratic Forces (SDF) agreed to...
The death toll from Sunday's collision between a derailing high-speed train and a second oncoming train in southern Spain has risen to 40, dozens more...
Portugal’s far-right leader André Ventura is using the presidential race to consolidate political power rather than to secure the office itself, ac...
French Prime Minister Sébastien Lecornu said on Monday (19 January) that the government will use special constitutional powers to force the passage o...
Syrian President Ahmed al-Sharaa and U.S. President Donald Trump discussed developments in Syria during a phone call on Monday, including Kurdish righ...
As typhoons hit Southeast Asia and Jamaica and Brazil recover from recent storms, delegates at Brazil’s COP30 summit are confronting how to help vulnerable communities cope with worsening climate extremes.
Britain must urgently prepare for global warming of at least 2 degrees Celsius above pre-industrial levels by 2050, its climate advisers said on Wednesday (15 October), warning the country is ill-prepared for extreme weather that is already occurring.
Wildfires have destroyed about a third of Namibia's Etosha National Park, a roughly 20,000 square-kilometre (7,722 square-mile) tourist destination known for its wildlife, the presidency said.
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.
Italian Prime Minister Giorgia Meloni said on Saturday (17 January) that concerns over security in Greenland should be addressed within the framework of NATO, describing a ground military intervention as highly unlikely.
Elon Musk is seeking up to $134 billion from OpenAI and Microsoft, arguing that the companies profited unfairly from his early support of the artificial intelligence firm, according to a court filing made public on Friday.
Italian fashion designer Valentino Garavani has died at the age of 93, his foundation said on Monday.
European leaders voiced growing alarm on Sunday over U.S. threats to impose tariffs on eight NATO allies, warning the move could destabilize transatlantic relations and heighten tensions in the Arctic.
Syrian President Ahmed al-Sharaa has signed a decree recognising Kurdish language rights, as government forces advanced against U.S.-backed Kurdish-led fighters despite U.S. calls for restraint.
Chilean President Gabriel Boric declared a state of catastrophe in two southern regions of country on Sunday as raging wildfires forced at least 20,000 people to evacuate and left at least 18 people dead.
A landmark global treaty to safeguard biodiversity in the high seas came into effect on Saturday, providing countries with a legally binding framework to tackle threats and meet a target to protect 30% of the ocean environment by 2030.
The 240-megawatt Khizi-Absheron Wind Power Plant has been inaugurated in Azerbaijan on Thursday (8 Jan) by President Ilham Aliyev, who described the launch as a landmark moment for Azerbaijan's energy sector. It's the first large-scale, independently developed wind energy project in the country.
A mountain gorilla has given birth to twins in war‑torn eastern Democratic Republic of Congo (DRC), a national park said on Wednesday, calling the event “a major event” for the endangered subspecies.
Experts say COP30 failed to deliver concrete commitments on fossil fuels and deforestation despite high expectations.
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