Methane from abandoned coal mines ...
28/04/2021 · Methane from abandoned coal mines could be key to fight climate change — if only it made more money. A former gas executive is using a closed mine's leaking methane to provide energy to Coloradans, but because it's a costly process, he's the only one in the state doing so. by Miguel Otárola, CPR News April 28, 2021.