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    Ruth Glacier in Alaska Hides America’s Deepest Gorge

    As his bush plane circled the craggy peaks of the Alaska Range, the explorer Bradford Washburn peered down and had a burning thought.Coursing down the southern slopes of Denali and Mount Silverthrone were the accumulated snows of thousands of winters, compacted under their own weight into colossal rivers of ice that filled the valleys for miles in every direction. At one particular spot in the white wilderness, Washburn noticed from above, all this glacial mass was somehow squeezing through a granite-walled corridor just a mile wide.Washburn became convinced, he wrote, that beneath the ice lay a secret: The corridor was deep. Deeper, perhaps, than any other gorge on the continent, and maybe even the planet.That was 1937. Nearly 90 years later, a team of scientists set off into the windswept mountains to measure the glacier with snowmobiles and ice-penetrating radar. It wasn’t easy: The Great North does not surrender its mysteries readily. The researchers almost didn’t think they’d found anything of interest.The Ruth Glacier originates beneath the summit of Denali and flows through deep granite valleys.Now, thanks to some clever analysis, and a bit of luck, they have put forth the most conclusive evidence yet that Washburn was right — that the area could be the deepest gorge in North America.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    Iceland Ice Wall Collapse: 1 Tourist Is Dead and 2 Are Trapped

    The tourists were part of a group exploring a glacier in southeastern Iceland when an ice canyon wall collapsed. A fourth tourist was rescued, officials said.One person has died, two people remain trapped and one person was injured after an ice canyon wall collapsed Sunday during a group tour of a glacier in southeastern Iceland, the authorities said.Emergency responders received a call at about 3 p.m. local time that a group of about 25 tourists with a tour guide were exploring ice caves and canyons on the glacier, Breidamerkurjokull, when the side of an ice canyon gave way, said Jón Þór Víglundsson, a spokesman for ICE-SAR, a volunteer search-and-rescue association.The glacier is part of Vatnajökull National Park, one of Europe’s largest, spread across nearly 5,460 square miles.Four people were hit by the falling ice, Lögreglan á Suðurlandi, the local police force, said on Facebook. Two of them were rescued, the police said.One victim was pronounced dead at the scene, and the other was airlifted to Landspitalinn, the National University Hospital of Iceland, and is in stable condition, the agency said on Facebook late Sunday evening.Two people remain trapped, the agency said, and their conditions were unclear. A search-and-rescue effort that was underway to find the missing tourists was suspended late on Sunday, the authorities said.“Conditions during the search are difficult and darkness is now upon us,” the agency said, adding that it was dangerous to continue the search through the night. The search will resume in the morning, the police said.Others in the group remained uninjured, according to the police.It was unclear on Sunday evening where the tourists were from, what tour company organized the expedition or how many guides were on the trip.At least 150 people are involved in the search-and-rescue efforts, Mr. Víglundsson said. Crews have a “good feeling” on where the two trapped tourists might be, he said, but the operation is complicated.“Although we think we know the location of the two missing, it is hard to say what amount of ice is between them and the rescuers,” Mr. Víglundsson said. “It is a difficult situation.”Because of the precarious location on the glacier, teams cannot use heavy equipment and are instead using hacks, chain saws and ice picks to move the ice by hand to “clear a path” forward, Mr. Víglundsson said.Crews are working in teams of 12 and in shifts, he said.According to the U.S. Geological Survey, Breidamerkurjokull is an outlet glacier that extends from Vatnajökull, Iceland’s largest glacier, into the Jökulsárlón glacial lagoon.Breidamerkurjokull is famous for its ice caves. The best time to visit is in winter, according to Adventures.is, an Icelandic tour operator.Vísir reported that tourism companies that have signed a contract with the national park are authorized to organize ice cave trips and glacier walks year-round, and that the park “trusts companies to assess the conditions.”Amanda Holpuch More

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    Alaska’s Juneau Ice Field Is Melting at an ‘Incredibly Worrying’ Pace, Scientists Say

    The speed of decline in the Juneau Ice Field, an expanse of 1,050 interconnected glaciers, has doubled in recent decades, scientists discovered.One of North America’s largest areas of interconnected glaciers is melting twice as quickly as it did before 2010, a team of scientists said Tuesday, in what they called an “incredibly worrying” sign that land ice in many places could disappear even sooner than previously thought.The Juneau Ice Field, which sprawls across the Coast Mountains of Alaska and British Columbia, lost 1.4 cubic miles of ice a year between 2010 and 2020, the researchers estimated. That’s a sharp acceleration from the decades before, and even sharper when compared with the mid-20th century or earlier, the scientists said. All told, the ice field has shed a quarter of its volume since the late 18th century, which was part of a period of glacial expansion known as the Little Ice Age.As societies add more and more planet-warming carbon dioxide to the atmosphere, glaciers in many areas could cross tipping points beyond which their melting speeds up rapidly, said Bethan Davies, a glaciologist at Newcastle University in England who led the new research.“If we reduce carbon, then we have more hope of retaining these wonderful ice masses,” Dr. Davies said. “The more carbon we put in, the more we risk irreversible, complete removal of them.”The scientists’ findings were published on Tuesday in the journal Nature Communications.The fate of Alaska’s ice matters tremendously for the world. In no other region of the planet are melting glaciers predicted to contribute more to global sea-level rise this century.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More