Melting at the microscale

ScienceNews: Earth's northern polar cap is disappearing at unprecedented rates. To understand why, re­-searchers are getting up close and personal with ice. Using satellites, scientists get a broad perspective on how the skin of sea ice atop the Arctic Ocean shrinks, on average, just a little bit more every summer. But zooming down to within a few meters of the surface brings some important little things into view. In particular, "microphysical" properties of the ice, such as how salty water ......

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