Climate scientist Darcy Peter is Gwich’in Athabascan and hails from the Yukon River village of Beaver, Alaska, population 25. There, she says, “The concept of a grocery store is overwhelming.” She laments that climate change threatens the village’s subsistence economy. “The Yukon’s channels are changing like crazy” as its banks erode, and a major source of sustenance—king salmon—is dwindling.