As the Earth warms, the top of Everest is becoming more dangerous and deadly.
The lack of snow on the mountaintop contributes to more rock slides and increasingly difficult climbing.
The lives of all Himalayans are affected as their farms are decimated and crops are lost.
Climbers say it's hotter in the summer and colder in the winter, creating problems that didn't exist 20 years ago.
Climate change is altering the face of the Himalayas, devastating farming communities and making Mount Everest increasingly treacherous to climb, some of the world's top mountaineers have warned.
Apa Sherpa, the Nepali climber who has conquered Mount Everest a record 21 times, said he was disturbed by the lack of snow on the world's highest peak, caused by rising temperatures.
"In 1989 when I first climbed Everest there was a lot of snow and ice but now most of it has just become bare rock. That, as a result, is causing more rockfalls which is a danger to the climbers," he told AFP.
"Also, climbing is becoming more difficult because when you are on a mountain you can wear crampons but it's very dangerous and very slippery to walk on bare rock with crampons."