Exclusive report from Rothera research station reveals how a tiny temperature increase disrupts Antarctic biology, with implications for climate science and medicine. Read the full investigation.
A severe Arctic freeze is set to bring snow, ice and temperatures as low as -12°C to the UK from New Year's Eve, with Met Office warnings for travel disruption. Stay informed.
The Met Office warns of a severe Arctic freeze hitting the UK, with temperatures plunging to -8°C and snow disrupting travel. Stay informed on the latest weather warnings and health alerts.
The Met Office warns of significant snow, ice, and travel disruption as a polar vortex sweeps the UK from New Year's Day. Get the latest forecasts and safety advice here.
A dramatic US weather shift sees spring-like warmth replaced by polar air and snow risk. Meanwhile, Japan battles deadly snow and New Zealand faces severe summer storms.
An Arctic deep freeze grips Canada with temperatures plunging below -50°C, while the US experiences record-breaking Christmas warmth. The extreme weather patterns are set to persist.
From a rare polar bear adoption in Canada to Christmas greetings in Jerusalem's Old City, The Guardian's picture editors curate Thursday's most compelling global images. Explore the stories behind the lens.
Canadian researchers document an incredibly rare case of a female polar bear adopting a second cub. The discovery offers new insight into the social bonds of Arctic predators.
Scientists confirm an extremely rare polar bear adoption in Canada's Hudson Bay, only the 13th in 45+ years of study. Discover how this act gives a vulnerable cub a second chance.
New research reveals polar bears are altering their genetic makeup to survive a warming Arctic. Is this a glimmer of hope or a stark indicator of the accelerating ecological crisis?
London asset manager Polar Capital reports £27.9m profit as AI investments drive record assets. Discover how tech exposure boosted performance despite market bubble fears.