Preserved ancient tundra landscape discovered under the Greenland Ice Sheet

Preserved ancient tundra landscape discovered under the Greenland Ice Sheet

A team of university scientists and a NASA colleague were greatly surprised to discover an ancient tundra landscape preserved under the Greenland Ice Sheet, below 3.2 km (2 miles) of ice. "We found organic soil that has been frozen to the bottom of the ic

The First True View of Global Erosion

The First True View of Global Erosion

Geologist Paul Bierman from University of Vermont and his graduate student, Eric Portenga, have taken twenty years worth of this disparate data, compiled 1599 measurements from eighty-seven sites around the world, and recalculated it with a single, up-to-date method.