Unusual rocks on an Icelandic beach were dropped there by icebergs, adding to evidence that an unusually cool period preceded ...

The melting of ice sheets won’t just trigger a mass extinction event, but a gradual and total collapse of life. This rapid melting may not always look like cracking rocks, spilling dams ...

The water pools in cracks and crevices. Then, at night, the temperature drops and the water expands as it turns to ice, splitting the rock like a sledgehammer to a wedge. The next day, under the ...

the fact that the rocks come from nearly all geological regions of Greenland supports their glacial origin. As glaciers advance, they erode the ground and carry materials from various sources, ...