Provincia china de Shanxi confirma reservas récord de metano en capas de carbón en 2023

(230724) -- TAIYUAN, July 24, 2023 (Xinhua) -- This photo taken on June 25, 2022 shows workers checking equipment at the workshop of a coalbed methane mining base in Qinshui County, north China's Shanxi Province. TO GO WITH "China's coal-rich province achieves record unconventional natural gas output in H1" (Xinhua/Wang Feihang)