methane
The U.S. has millions of old gas and oil wells. Here’s what it takes to plug them up
There was a circle in Maria Burns' yard where grass wouldn't grow and trees died. She knew what it was: An old natural gas well, plugged when she was a little girl, starting to leak again.
A ‘gassy’ Alabama coal mine was expanding under a home. After an explosion, two were left critically injured
Oak Grove Mine has a long history of safety violations. In 2006, federal officials evacuated its workers because of dangerous levels of methane, a flammable gas.
