Methane leak at Russian mine could be largest ever discovered

About 90 tonnes of methane an hour were released from the Raspadskaya coalmine in January, data shows

Possibly the world’s biggest leak of methane has been discovered coming from a coalmine in Russia, which has been pouring out the carbon dioxide equivalent of five coal-fired power stations.

About 90 tonnes an hour of methane were being released from the mine in January, when the gas was first traced to its source, according to data from GHGSat, a commercial satellite monitoring company based in Canada. Sustained over the course of a year, this would produce enough natural gas to power 2.4m homes.

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