About a year ago, the Alaska Department of Environmental Conservation tested Cold Bay’s water wells for PFAS, and the results came back well above the levels recommended for human consumption. Cold Bay closed the wells for drinking when the test results came back, and the Eastern Aleutian community has relied on state-provided bottled water ever since.

A typical December brings about 6 inches of rain to Unalaska. But the island has already received more than 10 inches this month. Michael Lawson, a meteorologist with the National Weather Service, said an atmospheric river above the Eastern Aleutians acted as a funnel to allow warm and rainy weather to move from the south to the north, directly across the region.

Three volcanoes are erupting across the Aleutian Range — Great Sitkin and Semisopochnoi in the Aleutian Islands and Pavlof Volcano on the Alaska Peninsula.

Thanks to warming winters and thawing permafrost, Arctic soil microbes are churning out carbon dioxide well after the end of the growing season ends. This extra source of atmospheric carbon may accelerate a regional warming trend that is already twice as fast as the global average.