Whatever the fate of the president's most sweeping climate policy, electric companies are looking beyond coal.
Low oil prices and the loss of a contractor have forced a Utah oil sands project to slow to a near halt.
The United States and 22 other countries agree to cut airlines' emissions over the next 12 years.
Dutch lawmakers are worried that subsidizing wood fuel will extend the lives of coal power plants.
American manufacturers complained that U.K. subsidies for wood pellets are pushing up their costs.
The amount of electricity generated from coal in the U.S. slid to its lowest level since the 1970s in November.
The Obama administration has temporarily halted coal leasing on federal lands to address climate change.
A Berkeley National Laboratory report shows state electricity goals making a small dent in U.S. carbon emissions.