Methane emissions from opencast lignite mining in Germany could be up to 184 times higher than officially reported. This is the conclusion of a recent Environmental Action Germany (DUH) analysis and the think tank Ember Climate. This means that methane emissions in Germany’s energy sector in 2021 were twice as high, and total methane emissions were 14 percent higher than previously assumed. The current study analyzed methane concentrations on satellite images and extrapolated them with more recent measurements from Poland.