Help may at last be on the way for the Nepali Sherpas who carry heavy loads for foreign climbers through treacherous sections of the world’s tallest peak.

When the main climbing season begins next month on Mount Everest, expedition companies will test drones that can ferry loads as heavy as 35 pounds in the high altitudes, bring back ladders used to set the climbing routes, and remove waste that is typically left behind.

Goods that would normally take seven hours to be transported by foot from Everest’s base camp to Camp I can be airlifted within 15 minutes. By lightening the Sherpas’ burdens, drone operators hope that the chances of fatal accidents — which have risen as climate change has accelerated snowmelt — can now be reduced.

“Sherpas bear enormous risks. The drone makes their task safer, faster and more efficient,” said Tshering Sherpa, whose organization, the Sagarmatha Pollution Control Committee, is responsible for fixing the route through the deadly Khumbu Icefall, southwest of Everest’s summit.

For about a year, operators have been experimenting with two drones donated by their Chinese maker. The pilot test during this year’s Everest climbing season is seen as an important opportunity to persuade expedition agencies to invest in more of the devices, which could be used to carry climbing gear and essential items like oxygen cylinders.

While the upfront cost of the drones may be high, their proponents say they will eventually reduce agencies’ costs.