Global Warming is Here, Everywhere Marr Glacier, Antartica - Researchers from Palmer Station on Anvers Island explore a melting edge of the Marr Glacier off the Antartic Peninsula. Glaciologists from the British Antartic Survey and the U.S. Geological Survey tehn compared more than 2,000 aerial photos and 100 satellite images of 244 glaciers to find that 87 percent have calved off, thinned and/or pulled back. "It appers that in recent times this large mixed population of floating and tidewater glaciers has responded synchronously" to a climatic warming, the scientists wrote in Science. Due to global warming, the Antartic Peninsula has warmed up rapidly, about six degrees over the past 50 years. Winter sea ice has decreased by more than 20 percent since 1973.
Picture (c) GARY BRAASCH/ZUMA Press