Should the Shale Gas Revolution be Feared or Cheered? America's dirtiest coal plants and driving U.S. carbon dioxide emissions

Should the shale gas revolution be feared or cheered?
The boom in shale gas production currently reshaping North American energy markets has a mixed environmental record. Cheap natural gas is forcing the closure of dozens of America’s dirtiest coal plants and driving U.S. carbon dioxide...Should the Shale Gas Revolution be Feared or Cheered? America's dirtiest coal plants and driving U.S. carbon dioxide emissions