Andean Glaciers Melting at Unprecedented Rates
Climate change has shrunk Andean glaciers between 30 and 50% since the 1970s and could melt many of them away altogether in coming years, according to a study published in the journal Cryosphere. Andean glaciers, a vital source of fresh water for tens of millions of South Americans, are retreating at their fastest rates in more than 300 years, according to the most comprehensive review of Andean ice loss so far. The study included data on about half of all Andean glaciers in South America, and blamed the ice loss on an average temperature rise of 0.7 degree Celsius over the past 70 years.
“Glacier retreat in the tropical Andes over the last three decades is unprecedented,” said Antoine Rabatel, the lead author of the study. The researchers also warned that future warming could totally wipe out the smaller glaciers found at lower altitudes that store and release fresh water for downstream communities.