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The Guardian - UK
The Guardian - UK
Environment
Karen McVeigh

Tap water no longer drinkable in Norwegian village as climate-related thawing releases heavy metals

A small town in an Arctic landscape
Longyearbyen’s 2,600 residents were first alerted to the water contamination in September 2025. Photograph: Rimante_Hegland/Getty Images/iStockphoto

Residents of a remote village in Norway that is in one of the fastest-warming places in the world have been told they must no longer drink tap water due to heavy metal contamination that scientists have linked to the thawing permafrost.

Longyearbyen, in the archipelago of Svalbard, gets its main drinking water supply from a 1.5 mile-long (2.5km) dammed lake called Isdammen, or “ice pond”. Higher temperatures as a result of the climate crisis have thawed permafrost, leading to newly exposed bedrock leaching metals into the pond.

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