Study Finds Human Urine Contributes to Glacier Melt on Mount Everest

A recent study published in the Regional Environmental Change journal indicates that human urine is contributing to the melting of glaciers on Mount Everest. The research, conducted by an international team sent by Nepal’s Survey Department, found that urine deposited on the glaciers can melt over 150 tons of ice and snow annually. The study focused on the Khumbu Glacier, where climbers gather before attempting to summit the mountain. The researchers noted that climbers generate approximately 3.181 liters (0.8 gallons) of urine each during their expeditions, leading to an estimated total of 338,299 liters over a typical 50-day climbing season. This amount of urine could potentially melt around 154 tons of ice. When combined with the heat generated from gas used for cooking and heating, the total melting could reach 2,492 tons, enough to fill an Olympic-sized swimming pool. The researchers suggest relocating the Everest Base Camp to a site with less melting potential to mitigate these environmental impacts. Additionally, Everest faces challenges from litter, with over 50 tons of trash reported on the mountain, which has led to its nickname as 'the world’s highest garbage dump.' Previous initiatives to incentivize climbers to bring back trash have not yielded significant results.