A fiber optic cable spied on Greenland’s glaciers. It found an alarming problem

Grist
By Matt SimonSep 5, 2025, 4:15 am127 ptsTrending
One of the buzziest technologies in modern science may be running right under your feet. Fiber optic cables bring you the internet as data-rich pulses of light, but they also detect signals from the surrounding environment: Researchers can analyze the light that’s scattered when a volcanic eruption or tsunami…

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