The mountaineers, who are scaling the world's tallest mountain to survey its natural resources, height and monitor potential impacts of climate change, are scheduled to reach the peak on May 22.
The Fox News host mocked Biden for reportedly embellished stories about visits to the front line in Afghanistan to meet soldiers.
Declassified film helps scientists show that ice loss has doubled in the last 20 years.
Janusz Adam Adamski descended the peak on the Nepali side of the mountain that straddles the border with China.
Spaniard Kilian Jornet Burgada summited Mount Everest in 26 hours, the fastest-known time.
An Australian climber also died while approaching the summit and a Slovakian climber perished in the so-called "death zone."
The calls comes after an 85-year-old man had a heart attack on the mountain side and died.
By 19, Marin Minamiya had quietly scaled two Himalayan mountains. Now she's skiing the North Pole.
Imja Tsho has been rapidly expanding due to climate change.
A Dutch man and an Australian woman died while descending from the summit.
For some villagers in the U.K., it would take up to five days to download an HD film.
Chinese border patrols lurk on the Tibetan side, ready to shoot anyone illegally crossing the pass.
Nepali villagers denying shelter to foreign trekkers, including many Israelis, as 100 people airlifted out of national park.
Death toll exceeds 3,200 as food and water shortages combined with aftershocks cause exodus from Kathmandu.
The avalanche was triggered by the 7.9-magnitude earthquake that has left thousands dead in Nepal.
"The toll could go up, it may include foreigners as well as sherpas," an official said.
The Army is setting out to deal with Everest's notorious trash problem.
The government vowed safety improvements after dozens die last year, but tour operators say the measures aren't enough.
The successful climb highlight the tragedies that have recently befallen climbers, and their guides, on the Earth's highest peak
"There was a big chunk of snow that fell over us and swept us away. It looked like clouds, all white," a survivor said