Digital billboards not so green, says Washington Post columnist
May 23, 2007
(Sarasota, Fla.) Herald Tribune: "There's lots of talk about the ‘greening' of America, in this time of climate change and soaring energy costs. But don't count the billboard industry in," said Neal Peirce, a columnist for The Washington Post. "The flashy mega-signs are called energy efficient, but they're powerful enough to be seen a half mile away and consume about 4,800 watts of electric power per square yard per hour."