Overview

• Researchers at the 2025 Goldschmidt Conference presented argon‐dating and crystal‐analysis evidence from six Chilean Andes volcanoes to illustrate how deglaciation releases pressure on deep magma reservoirs
• Accelerating glacial retreat is already easing lithostatic pressure on subglacial magma chambers, increasing the likelihood of more frequent and explosive eruptions
• The study warns that hundreds of buried volcanoes beneath ice sheets—particularly under West Antarctica—could reactivate over coming centuries as ice vanishes
• Eruptions triggered by ice loss may offer short‐term cooling via volcanic aerosols but contribute to long‐term warming through cumulative greenhouse gas emissions
• Findings underscore the need to integrate volcanic reactivation risks into climate models and expand monitoring of glaciated volcanic regions for early warning