U.S. Geological Survey staff check monitoring equipment in Suicide Basin in June 2025. By August, the basin had filled with meltwater. Jeff Conaway/U.S. Geological Survey

Glacial lake flood hits Juneau, Alaska, again, reflecting a growing global risk as mountain glaciers melt

Suicide Basin, an ice-dammed lake on an arm of Mendenhall Glacier, has filled up with meltwater and sent destructive surges of water into Juneau for 3 straight summers.
O Lago Imja, um enorme lago glacial na região do Monte Everest, no Nepal, começou como pequenas lagoas de água de degelo em 1962 e agora contém 90 milhões de metros cúbicos de água, volume que já foi reduzido numa tentativa de proteger as comunidades a jusante. Alton Byers

Derretimento de geleiras em montanhas aumenta risco de inundações catastróficas para milhões de pessoas

Quando o permafrost das montanhas descongela e as geleiras derretem, os lagos glaciais podem se tornar um risco de inundação letal para qualquer pessoa a jusante.
Imja Lake, a glacial lake in the Mount Everest region of Nepal, began as meltwater ponds in 1962 and now contains 90 million cubic meters of water. Its water level was lowered to protect downstream communities. Alton Byers

As mountain glaciers melt, risk of catastrophic flash floods rises for millions

When mountain permafrost thaws and glaciers melt, glacial lakes can become lethal flood risks for anyone downstream.
Trash collected in a 2019 cleanup that removed 24,000 pounds (10,000 kilograms) of garbage from Mount Everest. Narayan Maharjan/NurPhoto via Getty Images

Climbers have turned Mount Everest into a high‑altitude garbage dump, but sustainable solutions are within reach

Mountain tourism brings revenues to Nepal but leaves a mess behind. Local and international groups are offering new cleanup strategies.

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