Methane from the destroyed Nord Stream pipelines spread over a large part of the southern Baltic Sea and remained for several months. This is according to a study by researchers from the University of Gothenburg and the Voice of the Ocean research foundation.

A series of underwater explosions that ruptured the Nord Stream gas pipelines in 2022 caused the largest known methane leak on record from a single incident, according to new research published on Wednesday.

Up to 485,000 tonnes of the greenhouse gas seeped from the Nord Stream pipeline network following a series of explosions in 2022.

The mysterious Nord Stream pipeline explosions sent methane levels in the Baltic Sea rocketing to 1,000 times higher than normal, a new study has revealed, as fears grow over underwater sabotage linked to Russia.