HANOVER, N.H., Feb. 25 (UPI) -- Temperature, not variations in snowfall, is causing the dramatic shrinkage of Peru's Quelccaya Ice Cap, a symbol of global climate change, a U.S. study found.
Researchers at Dartmouth College used field mapping combined with the dating methods and ice cores to examine how the ice cap -- the largest ice mass in the tropics -- has expanded and retreated over the past millennium, the university reported Tuesday.