Pop Day 4

Environmental IssuesEnvironmental PollutionEnvironmental PoliticsU.S. Environmental Protection Agency
A power plant's cooling tower looms over Guo Xin, 13, who lives near the plant in Taiyuan. The taller, slender towers emit carbon dioxide, soot and other pollutants. The U.S. Environmental Protection Agency has found that on some days almost 25% of the pollutants above Los Angeles originated in... Rick Loomis / Los Angeles Times