After 49 days and 1,100km, Borge Ousland and Vincent Colliard have completed the first unsupported north-to-south crossing of ...

The collapse of the world’s second-largest ice sheet would drown cities worldwide. Is that ice more vulnerable than we know?

The wind, having tumbled down 4,000 feet of elevation from the domed summit of the ice sheet hundreds of miles to the west, ...