Antarctica experienced its highest-ever recorded winter temperature last week, reaching 15.5 degrees Celsius (59.9 degrees Fahrenheit) at an Argentinian research base. This temperature is over 20 degrees Celsius warmer than the seasonal average. Scientists are describing the conditions as a heatwave, with reports of rainfall instead of snowfall and large areas becoming ice-free. The previous winter temperature record, set in 1998, was 13.3 degrees Celsius. Researchers attribute the warming to climate change, though they acknowledge the complexity of Antarctic climate systems and plan further investigation. The altered landscape, shifting from white to brown, grey, and green, is impacting the continent’s ecosystem, particularly penguin colonies. These extreme temperatures raise concerns about the stability of Antarctic ice and its global implications.