"In the last three years alone, more than 9,400 of the nation's 25,000 sewage systems—including those in major cities—have reported violating the law by dumping untreated or partly treated human waste, chemicals and other hazardous materials into rivers and lakes and elsewhere, according to data from state environmental agencies and the Environmental Protection Agency."
Charles Duhigg talking about toxic waters on WNYC radio (link expired; try this article instead.)
animated gifs from Library of Congress photos
Kevin J Wier makes animated gifs using old photographs from the library of congress flickr account. ...
