Thomson ReutersJanuary 22, 2013 13:45
* To stop burning coal at some plants by 2016
* May convert in some cases to natural gas
* Sierra Club threatened suit last July
Jan 22 (Reuters) - Utility company MidAmerican Energy Co said it has reached a settlement with the Sierra Club over power plant emissions, which includes a pledge to stop burning coal at certain plants over the next few years.