A harrowing view from the top: global warming
Concerned mountain climbers are providing firsthand accounts of vanishing alpine routes throughout the world, adding evidence from areas that few scientists have accessed.
The Associated Press
BEND, Ore. — Mountaineers are bringing back firsthand accounts of vanishing glaciers, melting ice routes, crumbling rock formations and flood-prone lakes where glaciers once rose.
The observations are transforming a growing number of alpine and ice climbers, some of whom have scientific training, into eyewitnesses of global warming. Increasingly, they are deciding not to leave it to scientists to tell the entire story.
"I personally have done a bunch of ice climbs around the world that no longer exist," said Yvon Chouinard, a renowned climber and surfer and founder of Patagonia, an outdoor clothing and gear company that champions the environment.
"I mean, I was aghast at the change."
Chouinard pointed to recent trips where the ice had all but disappeared on the famous Diamond Couloir of 16,897-foot Mount Kenya, and snow was absent at low elevations on 4,409-foot Ben Nevis, Britain's highest peak, in the Highlands of northwest Scotland.
He sees a role for climbers in debating climate change, even if their chronicles are unscientific.
"Most people don't care whether the ice goes or not, the kind of ice that we climb on and stuff," he said. But climbers' stories, he added, can "make it personal, instead of just scientists talking about it. Telling personal stories might hit home to some people."
Alpine climbers are worrying about the loss of classic routes and potential new lines up mountains that are melting, from the Cascades in the Pacific Northwest and the Alps in Europe to the Andes in South America and the Himalaya in Asia.
Their accounts often reflect what science is finding, but with stories and pictures from places most scientists can't reach.
"As climbers we see these places, we go all over the world," Mark Bowen, a climber and physicist who wrote a book on climate and mountains, told the American Alpine Club at its annual meeting last weekend in Bend.
"We're in touch with the natural world like few people are. We can see the changes better than most people can," he said.
Scientists and diplomats at an international conference in Belgium predicted on Friday that global warming would turn many glaciers to lakes and cause rock avalanches because of frozen ground melting up high. People living in mountain areas can expect more risk of floods by glacial lakes.
Already, Switzerland's Matterhorn had to be closed to some climbing at times because of recent summer rockfall attributed to global warming, and its Great Aletsch Glacier — Europe's largest — has retreated a couple miles from its peak of 14 miles in length in 1860. The Swiss Alps' icy soil that glues its rock faces together is thawing, causing instability.
At Montana's Glacier National Park, glaciers are vanishing like the storied snows of Africa's Mount Kilimanjaro. In South America, the great ice fields of Patagonia in Argentina and Chile are shrinking; Bolivia hopes to keep its only ski area open by using artificial snow as the Chacaltaya Glacier fades.
The glacier from which Edmund Hillary and Tenzing Norgay made their first ascent of 29,035-foot Mount Everest in 1953 has retreated so much that mountaineers now walk hours longer to reach it.
A mile-long lake replaced the glacier at 20,305-foot Island Peak in Nepal's Everest region.
Japanese mountaineer and explorer Tomatsu Nakamura, editor of the Japanese Alpine News, said climbers are seeing more melting and less snow and ice in the mountains of the eastern Himalaya, Tibet and Bhutan, home to many of the highest unclimbed peaks in the world.
Since the 1940s, when geologist Maynard Miller began conducting research on Alaska's vast Juneau Icefield, he has seen how global warming has affected glaciers studied in the longest continuous research program of any ice-field system.
"We're going to be in one heck of a mess, I can guarantee that. We have mucked up the world's climate," said Miller, who was part of the 1963 expedition that got the first Americans to the summit of Mount Everest.
"Everything is changing, minute after minute, nothing is the same," he said. "Glaciers are extraordinarily sensitive indicators of climate change."
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