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Scientists map the Arctic's melting permafrost in real time
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Scientists map the Arctic's melting permafrost in real time

Here's the thing - as Arctic temperatures rise at two to three times the global average, Alaska's permafrost is thawing and causing serious problems like collapsing buildings and sinking roads. Scientists can't dig down to measure permafrost directly, but they've spotted something clever - when the ice-rich ground melts, it creates thermokarst ponds and lakes that are easy to spot from satellite imagery. Using artificial intelligence to analyze these satellite images, an international team has now mapped over 4 million lakes and 70 million thermokarst ponds across the Arctic, tracking changes in near-real time. So now, Arctic communities can finally prepare for what's coming by knowing exactly where the most dangerous permafrost thawing is happening.
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