Residents of Longyearbyen in Svalbard, Norway have been told not to drink tap water due to heavy metal contamination linked to permafrost thaw. The village draws its main drinking water from Isdammen, a dammed lake 2.5 kilometers long. Scientists attribute the contamination to higher temperatures from the climate crisis, which have thawed permafrost and exposed bedrock that leaches metals into the pond. Svalbard is one of the world's fastest-warming places.