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World's Dirtiest Rivers and Lakes (Slideshow)

While it is hard to rank rivers and lakes around the world in terms of who is THE worst, there are a few that stand out in the crowd. <p><a href="http://feedads.g.doubleclick.net/~at/GH7q7x1Esa2EvnT0ZR6rOK0hyos/0/da"><img src="http://feedads.g.doubleclick.net/~at/GH7q7x1Esa2EvnT0ZR6rOK0hyos/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~at/GH7q7x1Esa2EvnT0ZR6rOK0hyos/1/da"><img src="http://feedads.g.doubleclick.net/~at/GH7q7x1Esa2EvnT0ZR6rOK0hyos/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds2.feedburner.com/~r/digg/popular/~4/6fMXuhbCM6U" height="1" width="1"/>