Scientists in Antarctica have recorded, for the first time, unusually warm water beneath a glacier the size of Florida that is already melting and contributing to a rise in sea levels. The researchers, working on the Thwaites Glacier, recorded water temperatures at the base of the ice of more than 2 deg C, above the normal freezing point.
Australian authorities warned people on Wednesday to prepare for another wave of evacuations as temperatures in the country's southeast began to rise after a days-long cool spell, bringing the danger of revitalized blazes.