The Sierra Club says neither of the candidates has an enthusiastic plan to address Indiana's environmental issues.
Supporters of the RECLAIM Act say reclaiming old coal mines will open former coal towns to new economic opportunities.
The Environmental Protection Agency identified Rockport as the sixth largest carbon polluter nationally in 2014.
Coal-fired power plants in Indiana are balancing federal demands with business pressures in a number of ways.
Donnelly is targeted as a potential swing vote in the Senate.
A new solar farm about 20 miles south of Bloomington will help provide power to three southern Indiana counties.
Environmental groups are touting the economic impact of wind energy in Indiana as the state creates its 20-year energy plan.
Legislation that made its way to Governor Pence’s desk would halt a state-run energy conservation program.
Officials from the Office of Energy Development say they plan to submit energy policy recommendations to the governor in June.
Duke Energy has agreed to close part of its coal-burning power plant and allocate more resources to renewable energy.