The majority opinion states the Environmental Protection Agency failed to account for the costs of implementation of its emission regulations.
Indiana was one of 15 states challenging the EPA's rule limiting carbon emissions from power plants.
The EPA is lowering its standards for how much renewable fuel must be added to gasoline sold in the United States.
The Environmental Protection Agency sets standards on how much ethanol must be blended into gasoline.
Indiana farmers and ethanol producers are in limbo as they wait for the EPA to decide how much biofuel should be blended into the nation's gasoline.
This week the Environmental Protection Agency unveiled a new set of proposed regulations for existing coal-fired power plants.
Officials toured several Indianapolis areas including the Brownfield remediation and the Indy Cultural Trail.
Indiana is requesting Martinsville's wells be added to the Superfund National Priorities List so the city can receive federal assistance.
Governor Mitch Daniels says the Obama Administration is pursuing a pro-poverty policy when it comes to decisions on the environment and energy.
The Duke Energy Wabash unit in Terre Haute might close because of failure to meet new EPA rules regulating mercury release.