Billings Gazette: On its face, carbon capture doesn’t sound particularly complicated: Collect the carbon dioxide emitted by power plants and other coal-burning industries and pump it deep underground, where it can’t cause global warming. But that simplicity comes with a host of questions: Who owns the space underground where the carbon will go? What happens if the carbon affects someone’s groundwater or minerals? Who will be responsible for the carbon years from now? Lawmakers at the 2009 …