October 11 - A documentary team discovered human remains on Mount Everest apparently belonging to a man who went missing while trying to summit the peak 100 years ago, National Geographic magazine reported Friday.

Climate change is thinning snow and ice around the Himalayas, increasingly exposing the bodies of mountaineers who died chasing their dream of scaling the world's highest mountain.

Briton Andrew Irvine went missing in 1924 alongside climbing partner George Mallory as the pair attempted to be the first to reach Everest's summit, 8,848 meters (29,029 feet) above sea level.

Mallory's body was found in 1999 but clues about Irvine's fate were elusive until a National Geographic team discovered a boot, still clothing the remains of a foot, on the peak's Central Rongbuk Glacier.

On closer inspection, they found a sock with "a red label that has A.C. IRVINE stitched into it," the magazine reported.

The discovery could give further clues as to the location of the team's personal effects and may help resolve one of mountaineering's most enduring mysteries: whether Irvine and Mallory ever managed to reach the summit.

That could confirm Irvine and Mallory as the first to successfully scale the peak, nearly three decades before the first currently recognized summit in 1953 by climbers Edmund Hillary and Tenzing Norgay.

"It tells the whole story about what probably happened," Irvine's great-niece Julie Summers told National Geographic.

The first documented ascent of Everest came nearly three decades later when New Zealander Edmund Hillary and Nepalese Sherpa Tenzing Norgay scaled the mountain on May 29, 1953.  In 1963, Jim Whittaker became the first American to reach the summit.