Topic: Don Barger
Tennessee Valley Authority says it will phase out 18 older coal-fired generators at three power plants by 2020. Natural-gas and biomass units will replace the coal power as part of a TVA settlement over clean-air violations.
04/14/2011 07:41 pm
National parks clear trees from original battlefield 'sight lines,' delighting (and appalling) students of history.
04/23/2008 01:00 am