alaska glacier melting

The Taku Glacier, located north of Juneau, Alaska, has started to retreat as temperatures rise. They’re worried about an area called Prince William Sound along the south coast of Alaska in the US. The scientists wrote: “We, a group of scientists with expertise in climate change, landslides, and tsunami hazards, have identified an unstable mountain slope above the toe of Barry Glacier in Barry Arm, 60 miles east of Anchorage, that has the potential to fail and generate a tsunami. Photo by Wolfgang Kaehler/LightRocket/Getty Images New studies put hard numbers to Alaska's glacial retreat, now plainly visible to tourists. 165,433, This story has been shared 148,687 times. Restaurant 'reinvents the wheel' for social distancing, This story has been shared 427,395 times. A glacier in Alaska is threatening to trigger a potentially deadly and historic tsunami as it retreats under the overheated stress of climate change. Record heat in Alaska melts glaciers, hints at bigger problems that may be to come Alaska's temperature has risen by 4 degrees Fahrenheit in the last 50 years, that's compared with 2 … This region has seen glacier retreat, which has led to instability on the slopes of a mountain in Barry Arm above the Barry Glacier. Your California Privacy Rights Dark aerosols from wildfires and from fossil fuel burning that are deposited on the glacier surfaces can accelerate glacier melt. Sitemap The most hike-able glaciers in Alaska are undoubtedly going away. It was said to have reached 1,720 feet tall and the impact was compared to an atomic bomb by eye-witnesses. As the climate warms, glaciers melt and recede, … A 1958 landslide in the region resulted in what’s often referred to as the tallest tsunami wave in modern times. For three years, they used the methodology to survey the LeConte Glacier in Alaska. The team’s analysis tested several different models. “This tsunami could impact areas frequented by tourists, fishing vessels, and hunters (potentially hundreds of people at one time). Geophysicist Chunli Dai from the Ohio State University told NASA’s Earth Observatory: “It was hard to believe the numbers at first. Sorry, your blog cannot share posts by email. The researchers said: “Landslides have set off giant waves elsewhere in Alaska and Greenland during the past decade. An unprecedented ‘mega-tsunami’ could be caused by a melting Alaska glacier, scientists have warned. Researchers from the University of Alaska Fairbanks began looking at big changes to one of the state’s biggest glaciers on Monday. Farther south safety concerns at Alaska’s Glacier Bay National Park led to a 2017 report in which geologists described 24 landslides they believe were at least in part climate-related. Accept 9 things to know about Malik Beasley's estranged wife. If this happens, it could cause a “mega-tsunami”. We calculated that the landslide could release 16 times more debris and 11 times more energy than the 1958 landslide and megatsunami in Alaska,” said the team leader. Check your inbox for a confirmation link. To further complicate things, the tall mountains encasing the narrow glacier valleys reflect radar waves as frequently as the bedrock does. Most glaciers in Alaska are temperate, meaning they are at their melting point from surface to base and contain large pockets of water within the ice that scatter radar waves. The study said melting on Mount Hunter in Alaska’s Denali National Park … Melting due to global warming has left the slow-moving glaciers much diminished. If the goals of the 2015 Paris Climate Agreement are... Post was not sent - check your email addresses! by Maisey Webber on Dec 2, 2020 This website uses cookies to improve your experience. Melting glacier could unleash a tsunami in Alaska A huge glacier in Alaska could be the cause of a devastating tsunami in the area, warn American geologists. That is why a warning has been issued to people and vessels to avoid this area. Tyndall Glacier became separated from the retreating Guyot Glacier in the 1960s and has retreated 24 km (15 mi) since, averaging more than 500 m (1,600 ft) per year. If it’s not that soon, they think the ‘mega-tsunami’ is likely to happen within the next two decades. Read More, Melting glacier could unleash a tsunami in Alaska, The end of the world could be 'decades away' due to climate change. This story has been shared 148,687 times. “In Taan Fiord (Icy Bay, Alaska), a landslide that began moving slowly decades ago suddenly failed in October 2015. Here’s what to see now, and how. Scientists from the University of Alaska … PETER DOCKRILL. Researchers from the University of Alaska Fairbanks began looking at big changes to one of the state’s biggest glaciers on Monday. Photographs taken at the same locations decades apart reveal just how dramatically Alaska's glaciers are melting and retreating. In a normal year, cruise ships carrying up to 4,000 passengers transit Glacier Bay’s steep-walled fjords hundreds of … The potential disaster was warned about in May by scientists who wrote an open letter to the Alaska Department of Natural Resources (ADNR). June 28, 2012 / 2:58 PM / AP (AP) ANCHORAGE, Alaska - The wreckage of a military plane found this month on an Alaska glacier … In some places, the researchers recorded the glacier melting 100 … We'll assume you're ok with this, but you can opt-out if you wish. This story has been shared 165,433 times. Scientists give the example that in 2017 a similar phenomenon caused a small tsunami in western Greenland and killed 4 people. 427,395, This story has been shared 165,433 times. Generally, by the time you can see green vegetation in the chutes and bowls near ridge tops, most of the white, icy masses on looming slopes will be bona-fide hanging glaciers rather than just late-melting snow. In 2017, the park was told by the agency that the complete melting off of the glaciers was no longer expected to take place so quickly due to changes … As glaciers recede, the land above them also becomes more unstable. '52 Air Force plane wreckage found in melting Alaska glacier. Alaska’s glaciers account for far less than 1 percent of the world’s land ice. If you want to explore them before they’re gone for good, don’t wait too long. Thanks for contacting us. Privacy Notice The tsunami in Barry Arm will not be so high, but it can be dangerous because there is a population nearby, while Lituya is a remote area. Icy Bay in Alaska is fed by three large glaciers—Guyot, Yahtse, and Tyndall Glaciers—all of which have experienced a loss in length and thickness and, consequently, a loss in area. This is its first movement after the period 2009-2015 when it moved a total of 182 meters. A huge glacier in Alaska could be the cause of a devastating tsunami in the area, warn American geologists in the scientific journal Geophysical Research Letters. Glaciers are still spectacular and cruise lines still bring boatloads of tourists to Alaska… This event was caused by a magnitude 7.8 earthquake and is considered to be the third-highest wave in history, carrying trees 524 meters high on the slopes of the Lituya Bay. Do Not Sell My Personal Information. Since the release of the open letter earlier this year, further analysis has noted little change. A new study shows just how much of the glacier has been lost to climate change, and finds that a tsunami could be devastating for local communities. Due to the rapid retreat, its slopes lose support, and at some point, this can lead to a huge landslide. “Surviving villagers still have not returned because a nearby slope is deforming and threatening to fail. Forty-six gigatons of ice from Alaskan glaciers was lost on average each year from 2003 to 2010. Alaska’s Melting Glaciers Tell the Story of Climate Change Chunks of ice calving from South Sawyer Glacier in Tracy Arm, a fjord in Tongass National Forest near Juneau, Alaska. The craggy alpine region of south-central Alaska is already thawing dramatically. “Based on the elevation of the deposit above the water, the volume of land that was slipping, and the angle of the slope, we calculated that a collapse would release 16 times more debris and 11 times more energy than Alaska’s 1958 Lituya Bay landslide and mega-tsunami.”. The concerned experts claim the catastrophic event could even happen within the next 12 months if melting ice triggers a landslide of unstable rocks. A giant, catastrophic tsunami in Alaska triggered by a landslide of rock left unstable after glacier melting is likely to occur in the next two decades, scientists fear - and it could happen within the next 12 months. Widespread effects in Alaska include earlier spring snowmelt, reduced sea ice, shrinking glaciers, melting permafrost, bark beetle infestations, shoreline erosion, and more forest fires. Image credit: Bert van Mackelenbergh/Shutterstock.com. Noah Cyrus apologizes for using racially offensive term to defend Harry Styles, Heidi Klum says daughter Leni, 16, is now interested in modeling, Justin Bieber slams fan who asked Selena Gomez fans to bully Hailey Baldwin, © 2020 NYP Holdings, Inc. All Rights Reserved, Atlantic Ocean now hottest in 3,000 years as scientists warn of ‘storms and mass extinction’, Bonkers boffin claims there’s a 50/50 chance we’re living in a computer simulation in mind-blowing study, Extinction fears over WHALES as species now has ‘real and imminent’ risk of vanishing forever, Le Creuset takes up to 50 percent off cookware for Cyber Week sale, Dawn Levy is helping NY Post readers stay cozy with an exclusive sale, 18 Christmas face masks to get you in the holiday spirit for 2020, Asus VivoBook 15 laptop discounted for special Amazon deal, These bestselling vibration plates are an extra 15% off—and Amazon reviewers love them, Who is Montana Yao? “We believe that it is possible that this landslide-generated tsunami will happen within the next year, and likely within 20 years.”. Do Not Sell My Personal Information, Your California Privacy Rights After seasonal snow recedes during spring and summer, scores of glaciers become readily visible on slopes overlooking highways that traverse Alaska’s coastal mountains and the Alaska Range. “The unstable slope in Barry Arm is much bigger than either of these examples, and thus has the potential to produce a larger tsunami that could have impacts throughout Prince William Sound.”. This story has been shared 427,395 times. Causes Of Glaciers Melting Ice calving from Margerie glacier in Glacier Bay. One of the USA's tallest glaciers is melting at the fastest pace in 400 years, a new study reports. Temperatures worldwide are higher now than they have been in the past 1,300 years. In recent years, the glacier over the Barry Arm River has receded very quickly, becoming unstable, scientists say. “The resulting tsunami reached elevations of 633 feet near the landslide, and 35 feet 15 miles away. 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