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World s glaciers melting at accelerating rate © Brian Menounos Klinaklini Glacier in Canada: There is now far more certainty about what is happening
The world s glaciers are melting at an accelerating rate, according to a comprehensive new study.
A French-led team assessed the behaviour of nearly all documented ice streams on the planet.
The researchers found them to have lost almost 270 billion tonnes of ice a year over the opening two decades of the 21st Century.
The meltwater produced now accounts for about a fifth of global sea-level rise, the scientists tell Nature journal.
The numbers involved are quite hard to imagine, so team member Robert McNabb, from the universities of Ulster and Oslo, uses an analogy.
Climate change: World s glaciers melting at accelerating rate
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Travels in Geology: To the top of Europe: Jungfrau, Switzerland
by Naomi Lubick Tuesday, June 12, 2018
The 4,158-meter-tall Jungfrau in the Bernese Alps, part of the western Swiss Alps. Credit: ©Wengen-Muerren-Lauterbrunnental AG, www.swiss-image.ch
Intrepid visitors can take at least two paths to the top of Europe: an excruciating and dangerous ascent up the north face of the Eiger to the top of the nearly 4-kilometer-tall peak, or a comfortable (if steep) train ride through that mountain that allows less-athletic visitors to reach the neighboring Jungfrau.
Most travelers choose to visit Jungfrau (pronounced YOONG-frow), perched in the Bernese Alps, part of the western Swiss Alps. The train ride is a several-hour ascent through tunnels carved through the mountains in the late 1800s and early 1900s, and makes for an easy way to climb more than 2,000 meters of elevation. The steep tracks require a “tooth-train” that ratchets its way through the more than 7 kilomete