Arctic Infrastructure Was Built on Frozen Ground That’s Starting to Thaw — Drones Can Help Spot the Permafrost Changes Coming

From the air, Wainwright, Alaska, looks like a perfectly stable band of homes and roads between the Chukchi Sea and a vast, flat tundra. But just below the surface, the frozen ground that this town was built on contains large bodies of ice. Along the eroding coastal bluffs, that hidden ...