Disappearing lakes and AI are helping scientists map Arctic permafrost thaw in near‑real time

Florida gets a lot of attention for its sinkholes, especially when they swallow cars and entire houses. But its sinkhole risk has nothing on Alaska's. Much of Alaska's soil is permafrost - ground that remains below 32 degrees Fahrenheit (0 degrees Celsius) for at least two consecutive years. It is often rich with ice, but when that ice melts, the ground can collapse. The consequences are the same as in Florida: substantial property damage as the land that buildings, roads and pipes were built on sinks .