Posts Tagged "Alps"

Ski Resorts Seek Alternatives

Posted by on Dec 30, 2015 in All Posts, Featured Posts, News, Sports | 0 comments

Ski Resorts Seek Alternatives

Spread the News:ShareAs snow rapidly disappears from high mountains, ski and winter sport resorts are looking for alternatives to keep their struggling businesses alive. The world’s skiing industry is worth $60 to $70 billion, some estimates say. About 44 percent of ski-related travel is in the alps, while 21 percent is in the United States. In just 30 years, ski resorts in the Alps have seen 30 percent less snow, according to regional authorities. At the same time, temperatures have risen by 1.6 degrees Celsius since the 1960’s and glaciers in the region have lost 26 percent of their surface. For professional skiers, who train on glaciers, this could be bad news. If temperatures rise to 2 or 3 degrees higher, glaciers below 3,000 mertres will melt away, experts from the Hydrology Transfer and Environment Research Laboratory in Grenoble say.   Mont Ventoux ski resort – definitely no snow here #climatechange pic.twitter.com/Txc8T5fWkT — Ute Collier (@Ute_Collier) December 28, 2015 Already, Val Thorens, the highest ski resort in Europe in Savoie, France, has closed off its glacier to skiers. But the resort continues to trigger avalanches on the glacier to replenish its slopes below, depleting its glacier. “Before we trained at a very low elevation, around 2,400 meters, even in July,” French Ski champion Fabienne Serrat, who won two golds medals at the World Championships in 1974, told AFP. “Today many youths who compete go to South America [to train].” Instead, resorts are investing in dog sledding, snowshoeing and sledding to keep tourists coming. Franck Vernay, first deputy mayor of Biot, a small village in Haute-Savoie, in the Rhône-Alpes region, said the ski season in his commune has been closed for three seasons because no profits were being made. “We haven’t given up on skiing but we’ve got to try to lure people in other ways. Otherwise its certain death,” he added.   These Depressing Ski Resort Photos Show The Awful Impact Of California’s #Drought http://t.co/LD0pDIgbAu via @stephemcneal #climatechange — Green Bean (@iamgreenbean) March 24, 2015 In other parts of the world, like California, ski resorts are looking into other high mountain sports, like biking and rafting. Ski seasons have been shortened, so many resorts are now open year-round so they can stay afloat. They are also developing ropes courses, zip lines and disk golf. “It’s not just the tourists going to ski or mountain-bike in these elite destinations, but there are also entire communities relying on hotel jobs, rafting jobs, working at a ski lift,” Diana Madson, executive director of Mountain Pact, an organisation that empowers mountain communities, told the Los Angeles Times. “There are a lot of people who are vulnerable to these impacts.” Spread the...

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The Chameleon Glaciers

Posted by on Apr 16, 2015 in Adaptation, All Posts, Featured Posts, Science | 0 comments

The Chameleon Glaciers

Spread the News:ShareCan you spot the glacier on the picture above? Not that easy… Glacier Noir is a debris-covered glacier located in the French Alps. Contrary to clean-ice glaciers which are shiny white or blue ice masses, debris-covered glaciers are ice masses with a layer of rock debris on the top which makes them look like their surrounding environment: they are the “chameleon glaciers”. They are currently called debris-covered glaciers but in the early 2000s, you could hear “debris-mantled glaciers” and even “buried glaciers” in the 1960s. They are often confused with rock glaciers. There are a lot of names and confusion around debris-covered glaciers. Why? Simply because they are difficult to find, define and study as you can imagine from the picture above. Debris-covered glaciers represent around 5% of all mountains glaciers in the world. So why is it important to study them – there are many more clean-ice glaciers, aren’t there? Yes, debris-covered glaciers are a small fraction of all glaciers but like any other glacier, the melting of debris-covered glaciers contributes to sea level rise and there is currently huge uncertainty about how fast they melt compared to clean-ice glaciers. In addition, in the Himalayas, they make up a greater proportion of the glaciers and in many valleys, debris-covered glaciers are the main and often the only source of drinking water, like for example the famous Khumbu Glacier just below Mount Everest on the Nepal side. Some debris-covered glaciers, like the Tasman Glacier, the biggest glacier in New Zealand, are very large features that can be the origin of risks and hazards. The debris layer creates numerous ponds filled with meltwater on the surface of glaciers. These ponds can hold monumental volumes of water that can be suddenly and brutally drained through crevasses in the ice or a breach on their edge. This drainage can create an outburst flood and submerge the valley below. Debris layers on top of glaciers can come from rock falls, like for the Sherman Glacier in Alaska. This rock cover modifies the dynamics of the ice by slowing down the melting happening underneath. This insulation process creates various phenomena, like thickening of the ice under the debris, building hills of ice slowly moving down the glacier or advancement of the glacier’s tongue. These two phenomena can block or deviate water streams and again generate massive floods. A less obvious reason to study debris-covered glaciers is that if glaciers on Mars exist, they are debris-covered. So studying debris-covered glaciers on Earth can contribute to space conquest and the human adventure on Mars. In the same vein, studying current debris-covered glaciers and their behavior in the face of climate change can help us understand and interpret the climate of the past. There is an example of a potential misinterpretation of the Waiho Loop moraine in New Zealand in front of the Franz-Joseph Glacier: 12000 years there was a worldwide cooling event (called Younger Dryas) that might have led to the formation of the very large moraine of Waiho Loop. Or, a massive rock avalanche landing on Franz-Joseph Glacier triggered its advance and the deposition of the moraine. I’ve already described a few examples of debris-covered glaciers: Glacier Noir, Khumbu Glacier, Tasman Glacier, Sherman Glacier and maybe Franz-Joseph Glacier. But where else can you find debris-covered glaciers? They can actually be found in every mountain range: from the Miage Glacier (Italy) in the European Alps with  to the Inylchek Glacier (Kyrgyzstan) or Langtang (Nepal) glaciers in the Asian High Mountain; from the Black Rapids Glacier (Alaska) in the Rocky Mountains and the Dome Glacier (Canada), to the Andes...

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New Glacial Lakes to Transform Swiss Landscape

Posted by on Jan 27, 2015 in Adaptation, All Posts, Featured Posts, News, Policy and Economics | 0 comments

New Glacial Lakes to Transform Swiss Landscape

Spread the News:Share In 1983 this lake was a glacier (Monday, Switzerland) #climatechange @Sportscene_tv pic.twitter.com/vls2CY9bST — Nick H. (@nickhdg) September 28, 2013 Ongoing climate change is causing glaciers in the Swiss Alps to shrink dramatically, and some predict they will disappear entirely by the end of the century. As they melt over the coming decades, Swiss scientists estimate that 500 to 600 new lakes covering close to 50 square kilometers of land will form in Switzerland. That’s about the equivalent of two Lake Eries, the eleventh largest lake in the world. “The rapid melting of glaciers is radically changing the Alpine landscape,” world renowned Swiss glacier expert and University of Zurich professor Wilfried Haeberli reported at the annual meeting of the European Geosciences Union (EGU) in Vienna, according to Spiegel. flooding in Lucerne, switzerland (Source: Flickr/Nick Edelen) Haeberli and a team of scientists recently completed a project that attempts to predict where and when these new lakes will form using glacier bed models and time-based ablation scenarios for all Swiss glaciers. Using case studies, they also looked at the potential natural hazards that could be created by these new lakes, the development potential they might offer in terms of hydroelectric energy and tourism and legal issues they might present in terms of ownership, liability, exploitation and conservation. One lake in particular they studied was Lake Trift in the Valley of Gadmen, which appeared in the 1990s due to melting of the Altesch Glacier. Local authorities built a breathtaking suspension bridge over the lake that has since become a tourist attraction. Energy companies are also considering putting it to use for the generation of hydroelectric power. The creation of a dam, which would be necessary for such a project, would likely diminish the attractiveness of the site for tourists, but it could protect the area against the risk of flooding. suspension bridge at Trift lake (Source: Flickr/Bossl) “Whether the lake remains natural or becomes artificial, there is a significant risk of rock or ice avalanches due to the longterm destabilisation of slopes previously supported by the Trift glacier and the potential collapse of the current glacier tongue,” the scientists write. “Such avalanches can trigger a surge wave in the lake with disastrous consequences. The construction of a dam of adequate size could protect the area from floods and allow for the generation of power but it would reduce the appeal for tourists.” Haeberli and his colleagues urge that debates over some of these complex issues begin now, before the Swiss landscape transforms from one of glaciers to one of glacial lakes. Spread the...

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An Icy Art Installation Clear As Crystal

Posted by on Jan 7, 2015 in All Posts, Art/Culture, Featured Posts | 0 comments

An Icy Art Installation Clear As Crystal

Spread the News:Share“Thinning Ice”, an installation commissioned by Swarovski for its ninth year at Design Miami (December 3 – 7, 2014), links melting glaciers and climate change through a three-dimensional experience. Architect Jeanne Gang collaborated with James Balog, a National Geographic filmmaker/photographer, to create the installation, which includes a kind of glacier sculpture and a series of photographs, as well as video. The installation was inspired by Balog’s photographs of the shrinking Stubai Glacier in the Austrian Alps, where Swarovski is headquartered, over a three-year period. The Stubai photographs are part of Balog’s ongoing “Extreme Ice Survey,” an innovative, long-term photography project founded in 2007. The project consists of 28 cameras at 13 glaciers in Greenland, Iceland, the Nepalese Himalayas, Alaska and the Rocky Mountains of the United States, which have been recording the rapidly depleting glaciers every thirty minutes over the past several years. In an effort to bring Balog’s photographs to life, Gang displayed a fluid-formed luminous block, which represents a melting glacier, in the center of the room. This structure, which resembles a kind of table, is pocked with asymmetric holes embedded with a diverse selection of Swarovski crystals, from unprocessed fragments and shards to finely finished pieces. The holes are meant to resemble cryoconite holes, tiny perforations found on glaciers that are created by wind-blown dust made of rock particles, soot and microbes. Glacial Environment for Swarovski: At the Design Miami 2014, American artist Jeanne Gang des… http://t.co/9bo5gL3v9p #Mysecretshowroom — My Secret Showroom (@Secret_showroom) December 14, 2014 The installation’s floor is set with curving illuminated cracks, also filled with small bits of Swarovski crystal, which resemble the crevasses one might find in a receding glacier. Gang finished the installation room with an 11.5-foot tall and a 70-foot long media wall, which presented a running slideshow of epic photographs and video footage of the world’s glaciers.   “‘Thinning Ice’ is a work which captures the haunting beauty of the Earth’s threatened glaciers in a powerful, almost elegiac way,” said Nadja Swarovski, a member of the Swarovski Executive Board, in a statement. The immersive nature of the work is meant to inspire visitors to contemplate the implications of and solutions to the melting of the world’s glaciers. Swarovski chose to showcase glaciers in Florida to highlight its commitment to sustainability. For 14 years, the company has funded its Swarovski Waterschool Program, which educates children around the world in the principles of sustainable water management. Swarovski also sources materials from suppliers that comply with the United Nations Global Compact’s human rights and environmental standards. GlacierHub has posted other stories recently about artists from the United States, Italy, and Peru whose work centers on glaciers. Spread the...

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Glacier Archaeology Comes of Age

Posted by on Dec 12, 2014 in All Posts, Featured Posts, Science | 1 comment

Glacier Archaeology Comes of Age

Spread the News:ShareHave you heard of Ötzi? One of the world’s best-preserved mummies, he immediately became an archaeological sensation when he came to light in 1991, and new details of his story have been surfacing in scientific journals, magazines, television programs and on the radio ever since—Radiolab dedicated an entire episode to Ötzi just last year. A 45-year-old Neolithic man, fully clothed and carrying a backpack, an axe, a dagger, medicinal plants, and many other personal belongings, he was discovered by a pair of hikers in the Ötzal Alps of Italy lying face down in glacial ice and meltwater. At first the hikers thought he was the victim of a recent mountaineering accident. But when scientists took a look, they discovered the body was over 5,000 years old. Ötzi could be considered the poster child for what has since become its own branch of study: glacier archaeology. Though it has been over two decades since Ötzi was discovered, and many more major finds have surfaced in melting ice and snow in the time since then, glacier archaeology is a field that is only now coming into its own. While one-offs like Ötzi and other mummies have made thrilling finds, the potential for recovery of new artifacts is growing as glacial melt accelerates around the globe. Just this November, the first journal dedicated exclusively to glacier archaeology launched: it’s called, suitably, The Journal of Glacier Archaeology. “There is immediacy to this research,” write the editors in an introduction to the journal’s first annual issue. “Climate models suggest that in the next decades many sites will be lost to melting and decay. Consequently, it is imperative to extend the geographic scope of this research now.” Once the artifacts thaw, they begin to decompose, and shrivel up, which makes them less valuable to researchers, which has lent the hunt for finds a sense of urgency. Vast regions of Asia, Europe, and North and South American have so far been virtually untouched by the discipline. Identifying good new sites in remote glaciated regions of the world is increasingly being done with the aid of advanced technology: not just aerial photography and helicopter surveys, but satellite imagery and geographic systems modeling. The first issue of the journal offers, among other things, an overview of findings about the impeccably preserved 500-year-old “Inca Ice Maiden” and two other mummified Inca children, discovered together in 1999 on Mount Lullaillaco in northwestern Argentina and understood to be human sacrifices; a pollen analysis of caribou dung found on ice patches in the Yukon; a discussion of bronze age arrows found in Norwegian alpine snow patches (see below); and an analysis of GIS (Geographic Information Systems mapping) methods used by glacial archaeologists. A series of annual meetings called “Frozen Pasts,” first launched in Switzerland in 2008, provided the impetus for the new journal, according to Martin Callanan, a glacial archaeologist at Norwegian University of Science and Technology in Trondheim and managing editor of the journal. “It’s a bottom-up thing—people working with the same things, the same complex phenomena, the same findings, all finding each other and saying something is going on here, and it’s global, we need to have regular meetings and a proper publication for ourselves,” he says. “It’s its own special little field…we’ve only started looking.” The Cryospheric Gallery The funny thing about the term glacial archaeology is that most artifacts recovered intact from melting snow and ice actually come from what are called snow and ice “patches,” according to Callanan. That’s because snow and ice patches don’t grow and recede the way glaciers do, making them less likely to crush...

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