Overview
- An international team published findings in Regional Environmental Change reporting that human activity at Everest Base Camp produced about 849,174 megajoules of heat in the 2023 spring season, enough to melt roughly 2,492 tonnes of ice and snow.
- Researchers calculated that urine discharged onto the Khumbu Glacier could account for about 154 tonnes of that seasonal melt while fuel use for cooking, heating and generators drove roughly 94 percent of the quantified human‑caused melting.
- Satellite analysis of Landsat imagery showed Base Camp surface temperatures rose at about 0.28°C per year from 1991 to 2023, roughly double the warming rate of the surrounding Khumbu Glacier, indicating concentrated local warming where the camp sits.
- The authors caution their totals are conservative because their calculations excluded heat from helicopter flights, climbers’ body warmth and pack animals, and they note some heat estimates assume full transfer to ice so actual impacts are uncertain.
- To reduce local stress on the glacier the paper recommends considering relocation of Base Camp to a stable, ice‑free site and improving fuel, energy and liquid‑waste management, which would affect expedition logistics and local livelihoods if implemented.