Spread the News:ShareRoundup: Glacier Calving, Ciliates and the Alps A calving event in Porcupine Glacier shows rapid retreat From the American Geophysical Union: “Porcupine Glacier is a 20 km long outlet glacier of an icefield in the Hoodoo Mountains of Northern British Columbia that terminates in an expanding proglacial lake. During 2016 the glacier had a 1.2 square kilometer iceberg break off, leading to a retreat of 1.7 km in one year. This is an unusually large iceberg to calve off in a proglacial lake, the largest ever seen in British Columbia or Alaska… The retreat of this glacier is similar to a number of other glaciers in the area: Great Glacier, Chickamin Glacier, South Sawyer Glacier and Bromley Glacier. The retreat is driven by an increase in snowline/equilibrium line elevations which in 2016 is at 1700 m, similar to that on South Sawyer Glacier in 2016.” Learn more about the retreat of Porcupine glacier, and view satellite images here. Patterned ground exposed by glacier retreat in the Alps From the Biology and Fertility of Soils: “Patterned ground (PG) is one of the most evident expressions of cryogenic processes affecting periglacial soils, where macroscopic, repeated variations in soil morphology seem to be associated with small-scale edaphic [impacted by soil] and vegetation gradients, potentially influencing also microbial communities. While for high-latitude environments only few studies on PG microbiology are available, the alpine context, where PG features are rarer, is almost unexplored under this point of view… These first results support the hypothesis that microbial ecology in alpine, periglacial ecosystems is driven by a complex series of environmental factors, such as lithology [study of the general physical characteristics of rocks], altitude, and...Read More
Spread the News:ShareAntarctica, the world’s southernmost continent, is a hostile realm of ice and snow, fictionalized in our popular culture by the likes of H.P. Lovecraft and further romanticized by real-world scientific explorers eager to lay claim to the region. Humans who venture to the southernmost pole do so by way of the Antarctic Peninsula, where they may visit Port Lockroy, site of a former British research station, or take in by cruise the vast terrain and wildlife of the region. Multiple countries also operate scientific camps and research programs in more remote locales of Antarctica where science teams study awe-inspiring glaciers and ice sheets throughout the year. The largest ice sheet in the world, Antarctica is composed of around 98% continental ice and 2% barren rock. The ancient ice is incredibly thick, although it has been thinning due to the effects of climate change. Several nations have made overlapping claims to the Antarctic continent. The Antarctic Treaty, signed in Washington in 1959, attempts to maintain peace, by neither denying or providing recognition to these territorial claims. Today, a total of 53 countries have signed the treaty, including Argentina, Australia, Chile, France, New Zealand, Norway and the United Kingdom, countries that have all made specific claims in the region. The United States and Russia, meanwhile, have maintained a “basis of claim” in the region. Scientists of these nations conduct field research from Antarctica bases to gather greater knowledge about climatic changes affecting the larger world. Studying glaciers in Antarctica is of great impact due to the influence of melting glaciers on global sea levels. In addition, Antarctica plays a primary role in the world’s climate. According to Antarcticglaciers.org, “Cold...Read More
Spread the News:ShareSarah Jane Pell, a researcher at the Exertion Games Lab at the Royal Melbourne Institute of Technology in Melbourne, Australia and a self-described artist-adventurer, initially planned to climb Mount Everest in April 2015 to document her experiences with high-definition 360-degree video and record artistic expressions on the summit. She hoped to provide human-computer interaction designers with initial research on how to embrace adventure. As part of the Exertion Games Lab, which focuses on exploring the role of games in order to design better interactive experiences, Pell is particularly interested in human movement and performing arts. She was initially hired at RMIT as a visiting researcher to explore digital systems supporting performance for underwater play. She chose Mount Everest as an extreme location for her field work, but she never expected to have her journey interrupted by a powerful earthquake that struck Nepal a few weeks into her trek. Pell then reoriented her research based on her experiences during her expedition to focus on technology’s role in adventure. On April 25, 2015, a 7.8 magnitude earthquake hit the region just before noon local time, killing eighteen climbers on Everest and more than 8,000 across Nepal, while displacing another 2.8 million people, according to a Washington Post article written by Annie Gowen. A few weeks before the earthquake, Pell had arrived in Lukla Airport and begun her ten-day trek to Everest Base camp. Due to an unforeseen incident with her climber’s permit days before the earthquake, Pell had left Everest, traveling to Kathmandu to resolve the issue before returning to Everest Base Camp (EBC). She was on the fourth floor of her hotel in the capital when the earthquake...Read More
Spread the News:ShareThe beauty and mystique of Mt. Everest has never ceased to capture the world’s imagination, inspiring climbers from all over the globe to test their fitness on the iconic mountain’s south face. For some, reaching the planet’s paramount point is a conquest, one made more enticing by Everest’s unrelenting media attention and its recent commercial availability to Western climbers. For others, especially local Sherpas, the mountain and its growing presence in the adventure tourism industry represents one of few opportunities for seasonal income and food on the family dinner table. The latest chapter in the long history of climbing on Mount Everest has ended in conflict, provoked by the Nepalese government’s failure to provide Sherpas with summit certificates. Without certificates to verify successful summits on high altitude peaks, the Sherpas’ ability to financially benefit from climbing expeditions on local mountains may be dramatically reduced. In isolated Himalayan mountain towns, the economic stimulus provided by large climbing expeditions can be dramatic, offering Sherpas the opportunity to work alongside international alpinists in hauling gear, fixing ropes and offering all-around support in strenuous high-altitude environments. The average yearly income in Nepal is $691, according to the United Nations data library, meaning that porters who may earn between $2500 and $5000 in a climbing season are making a major fiscal contribution to their families. Even so, this contribution comes at a steep price, with porters facing major safety risks associated with mountaineering. Despite being an integral part of Mt. Everest’s climbing history since Sir Edmund Hillary and Tenzing Norgay’s first ascent in 1953, Sherpas who successfully summited the peak during the 2016 climbing season were denied summit certificates by the...Read More
Want more fast news on a slow topic? Sign up for our weekly email newsletter here.
Check out our collection of links to other websites we like about glacier research, art and conservation.
We provide information about current scientific research about glaciers and we offer accounts of communities and organizations who are working to address the challenges brought by glacier retreat, whether through activism, policy and economics, through art, photography, or other means.