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Glaciers are melting - but what remains uncertain is how quickly they are. This poses a problem in not knowing how much and how soon sea levels around the world could rise.
One of the Arête Glacier Initiative's aims is to predict just this, with a helping hand from technology and scientists in Lake Michigan, which was formerly a glacial site.
At the University of Wisconsin, a machine takes the samples from Lake Michigan to conduct experiments that could one day predict how fast glaciers in Antarctica and elsewhere in the world could disappear.
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