Unprecedented Glacier Retreat Observed Across The Andes

Recent research published in Science reveals an unprecedented retreat of glaciers in the Andes, surprising scientists who thought these changes would take decades to become apparent. This rapid glacier decline signals troubling climatic changes that could impact global environments.

Study Overview

The study, led by Andrew Gorin, used carbon dating to examine bedrock recently uncovered as glaciers recede. Initial doubts were resolved when repeated tests showed significant drops in beryllium-10 and carbon-14 levels, indicating extensive melting of glaciers. The research found that the exposed bedrock had not been uncovered during the Holocene Era (about 11,700 years ago) and likely dates back to the last interglacial period, over 115,000 years ago. This suggests that the glaciers are currently smaller than they have been in thousands of years.

Geographical Significance

The Andes contain 99% of the world’s tropical glaciers, making them especially sensitive to climatic changes. Their location near freezing temperatures means they react quickly to shifts in weather patterns. Gorin warns that the changes observed in the Andes might be a sign of broader global climate shifts. He suggests that similar changes could soon occur in other regions, indicating a move away from the stable climate conditions that modern civilization depends on.

About Andes mountains

The Andes, stretching over 7,000 km, are the longest mountain range in the world. They form a natural barrier between the Pacific Ocean and the Amazon Basin. The range is home to over 7,000 plant species and includes the world’s highest active volcano, Ojos del Salado, at 6,893 meters. The Andes support diverse ecosystems, including the unique puna grassland, and were the center of the advanced Inca civilization. Additionally, the Andes are a major source of valuable minerals, especially copper and lithium.

Month: Current Affairs - August, 2024

Category: Environment Current Affairs