The #GlobalMethanePledge calls for a 30% reduction in emissions by 2030. The #CumbrianMine would make that target almost impossible to meet. Coal mines, including abandoned mines, are a big global source of #methane whose warming effect is 80 times that of carbon dioxide.
https://www.theguardian.com/environment/2023/jan/17/cumbria-coalmine-uk-climate-goals-methane-emissions?CMP=Share_iOSApp_Other