Former Federal Energy Official Says U.S. Needs a Balanced Energy Mix

Coal-producing states like Kentucky are warily eying federal regulations that have begun moving the country away from fossil fuels.Even so, Sue Tierney says she thinks coal will be around for awhile, though it will be cleaner and make up less of the nation’s energy mix. Tierney was the Assistant Secretary for Policy in the U.S. Department of Energy under President Bill Clinton. She’s giving a talk on what she calls “sustainable energy” in both the U.S. and China next week.