Which U.S. region is expected to experience a significant increase in natural gas production over the next decade?
  • Marcellus Shale
What is the largest environmental concern related to coal burning for electricity generation?
  • Carbon dioxide emissions
What is the largest environmental concern related to coal burning for electricity generation?
  • Carbon dioxide emissions
What U.S. region is primarily affected by the environmental impacts of coal mining, such as mountaintop removal?
  • Appalachia