“Commuters probably weren’t expecting this on their way to work in the morning. But beginning July 12th, theSierra Club took over all of the ad space inside Washington, D.C.’s Farragut North Station to share their message that air pollution from coal-fired power plants poses health risks.
80 metro cars have carried similar ads since April.”
Coal-Fired Power Plants Targeted By Sierra Club In Washington, D.C. via Huffington Post