High Temperatures Melting Over 200 Glaciers
Scientists say that over 200 coastal glaciers in Antarctica are retreating due to higher temperatures.
The scientists are not sure whether the higher temperatures are the result of global warming or just a natural regional effect.
According to an Associated Press article,
“Researchers from the British Antarctic Survey and the U.S. Geological Survey analyzed more than 2,000 aerial photographs dating from 1940 and more than 100 satellite images from the 1960s onwards.
They calculated that 87 percent of the 244 glaciers going out to sea from the peninsula have retreated during the last 50 years and that the pace of shrinkage has accelerated in the last decade. Until now, scientists were uncertain whether the glaciers were growing or melting.”
“Fifty years ago, most of the glaciers we look at were slowly growing in length but since then this pattern has reversed. In the last five years the majority were actually shrinking rapidly,” said leader of the study, Alison Cook of the British Antarctic Survey.
A decrease in ice has also been discovered in Alaska as well as the North Pole.