Ozone layer treaty pushed back ice-free Arctic summers up to 15 years
22 May 2023
A 1987 treaty to ban ozone-destroying gases helped delay the first Arctic summer with no ice, which is now projected to happen by 2037 at the earliest
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Polar ice sheets may retreat much faster than previously thought
5 April 2023
Traces on the sea floor suggest an ancient ice sheet retreated at more than 600 metres per day at the end of the last glaciation, raising concern about the fate of modern ice sheets
Glowing Arctic snailfish is packed with antifreeze proteins
16 August 2022
Greenland’s variegated snailfish produces antifreeze proteins that stop large ice crystal formation, keeping the animal’s blood like a slushie, instead of frozen solid
Arctic and Antarctic see extreme heat and historically low sea ice
22 March 2022
Both poles are being warmed by unusually hot air currents, but scientists think the extreme temperatures in Antarctica are a result of natural variability not climate change
Atlantic Ocean water began warming the Arctic as early as 1907
24 November 2021
A sediment core from Svalbard has revealed a sudden influx of warm water in the Arctic in 1907, which is evidence of a process that is spurring ice loss
Dinosaurs lived in the Arctic around 70 million years ago
24 June 2021
Newly discovered fossils suggest that dinosaurs nested in modern-day Alaska, surviving the frigid and dark winters of the ancient Arctic
‘Zombie’ fires in Alaska and Canada may be becoming more common
19 May 2021
Some forest fires burn in the summer, smoulder through winter and reignite in spring – and a new model suggests they may be becoming more common in parts of the Arctic
Arctic sea ice loss could trigger huge levels of extra global warming
27 October 2020
Arctic sea ice vanishing in summers by 2050 could trigger 0.19°C of extra global warming – almost enough to wipe out any savings from China going carbon neutral
Tiny algae can photosynthesise and grow in the dark beneath Arctic ice
25 September 2020
Microscopic marine algae can use even the smallest amount of reflected light to grow in near darkness during winter under the Arctic sea ice
Climate change may kill off nearly all polar bears by 2100
20 July 2020
Unchecked climate change will doom all but one of the world’s populations of polar bears before the end of the century, as vanishing sea ice increases their annual fasts beyond their limits
