Big Dog Energy installed 30 natural gas-powered generators and a gas-producing unit at a well pad without authorization from DEP. Now, EPA is involved.
A CMU scientist is using photographs of Pittsburgh hillsides to predict where landslides are more likely to occur. Climate change will bring more heavy rains and landslides.
Methane is a potent greenhouse gas. Environmentalists say proposed state rules are too lenient, industry says they're too costly. But they might bring new technology and jobs to the state.