Overview
- The European Copernicus Sentinel-2 image from June 30, 2026 visually confirms the Perito Moreno glacier front has retreated since 2016 and provides repeatable satellite evidence of change.
- A peer-reviewed study in Communications Earth & Environment led by researchers at Friedrich‑Alexander University found the glacier shifted from relative stability to accelerated thinning after 2019, with near-front thinning rates rising from about 0.34 m/year (2000–2019) to roughly 5.5–6.5 m/year (2019–2024).
- Scientists report the ice appears to be losing contact with a submerged bedrock 'anchor' that once held the front in place, a loss that increases frontal flotation, raises the likelihood of larger calving events, and can speed further retreat.
- Multi-decade satellite monitoring shows large recent frontal losses, including reports of nearly 385 meters lost in a single year, more than 800 meters of retreat in recent years, and about 3 km² of surface loss over 25 years, changes that could alter viewing platforms and local tourism flows that drew nearly 800,000 park entries in 2023.
- The shift at Perito Moreno mirrors broader glacier mass loss driven by accumulated warming, underscores the value of frequent satellite monitoring for remote ice, and raises local concerns about water resources, hazard changes on Brazo Rico, and how park managers will adapt viewing and safety plans.