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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Iran's Revolutionary Guards Navy said a Togo-flagged oil tanker was struck while attempting to make an “illegal passage” through the Strait of Hormuz, Iranian state media said early on Friday.
Saudi civil defence sent an all-clear on Saturday after issuing alerts for a second time for potential danger in Riyadh and the city of Al-Kharj east of the capital, amid an uptick in attacks by Iran-aligned Houthis on the Gulf country.
The European Union will disburse €3.3 billion ($3.8 billion) to Ukraine for missiles and drones, European Commission President Ursula von der Leyen said after a phone call with Ukrainian President Volodymyr Zelenskyy.
The U.S. State Department approved a $2.7 billion military sale to Ukraine for air-defence development upgrades, along with related equipment and services, the department said. Meanwhile, Ukrainian authorities reported at least 10 people had died in Russian attacks over the last 24 hours.
Houthi attacks target Riyadh amid concerns over Saudi oil supplies, as Iran says it will not reopen the Strait of Hormuz until its conditions are met and U.S. commitments are implemented, parliament speaker Mohammad Bagher Ghalibaf said on Sunday.
Greenland and Antarctica have shed a combined 11.3 trillion tonnes of ice since 1979, according to the most comprehensive satellite study of the planet's ice sheets to date, with researchers warning the pace of loss has accelerated sharply in recent decades.
The European Union will continue allowing large-scale plastic waste exports to Türkiye despite concerns over recycling rates, environmental damage and the risk of illegal waste trafficking.
Hundreds of thousands of deep-diving turtles, known as olive ridley sea turtles, have arrived on Mexico’s southern coast for one of nature’s most striking nesting events. But conservation officials warn that climate change is making it increasingly difficult for their eggs to hatch.
August 2026 tied as the hottest month ever recorded globally, pushing average temperatures above the critical 1.5°C threshold as extreme weather swept across several regions, the EU’s Copernicus Climate Change Service said.
Increasingly intense wildfires and heat waves are threatening global efforts to improve air quality and protect public health, the United Nations’ weather agency has warned.
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