Methane leak at Russian mine could be largest ever discovered
![](https://weirdnews.info/wp-content/uploads/2022/06/Methane-leak-at-Russian-mine-could-be-largest-ever-discovered-601x220.jpg)
About 90 tons of methane an hour were released from the Raspadskaya coalmine in January, data shows Blast at the Raspadskaya coal mine, Russia. Photograph: Bloomberg/Getty Images – Fiona Harvey Environment correspondent Last modified on 2022 Jun 15 – Possibly the world’s biggest …