Overview
- Hydrodynamic modeling presented by regional officials identifies four hanging ice blocks above Laguna Lasuntay whose collapse could release about one million cubic meters of water and send an aluvión to Huancayo in roughly an hour.
- Inaigem reports Nevado Huaytapallana has lost about 72% of its glacier mass, a decline specialists describe as irreversible though potentially slowable with mitigation.
- Black carbon from vehicles and agricultural burning is depositing on the ice, with measured concentrations averaging around 500 ng/m³ and spiking to triple that level, darkening surfaces and accelerating melt.
- National satellite analyses show Peru has lost more than 62,000 hectares of glacier area since 1985; Ayacucho’s glaciers had vanished by 2016, and a four-year update to the 2023 Inaigem inventory is due this year.
- Scientists warn Peru could lose roughly 45% of glacier mass by 2100 with mitigation or up to 80% without it, threatening dry-season river flows and already degrading water quality in some Cordillera Blanca sub-basins.