By the end of this century, the landscape around Mount Everest may drastically change. As the planet continues to warm, the Everest region of Nepal could lose most of its glaciers, according to a study published in the journal The Cryosphere.

“We did not expect to see glaciers reduced at such a large scale,” said Joseph Shea, a glacier hydrologist at the International Center for Integrated Mountain Development in Nepal and lead author of the new report. “The numbers are quite frightening.”

Dr. Shea and his colleagues found that moderate reductions in greenhouse gas emissions could result in a 70 percent loss of glaciers around Mount Everest, while a business-as-usual scenario in which emissions remain at the same levels could result in a 99 percent loss.

To arrive at these findings, Dr. Shea and his colleagues used a computer model for glacier melt, accumulation and redistribution. They customized the model with data on temperature and precipitation, measurements from the field and remote-sensing observations collected over 50 years from the Dudh Koshi basin, which includes Mount Everest and several of the world’s other highest peaks.