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9 of the world's most majestic rivers in peril

By: Katherine Butler on March 13, 2012, 4:56 p.m.
Congo River

Photo: Julien Harneis/Flickr

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The Congo

The Congo River is one of the most plentiful rivers in the world. It is thought to discharge as much as 1.5 million cubic feet of water per second. While parts of the river are polluted from urban waste and soil erosion, much of the pollution of the river is caused by human travel. The river is considered Africa’s main navigational system. The Grand Inga Dam, the world’s largest hydropower plant, has been proposed for the river in the Democratic Republic of Congo, one of the most politically corrupt areas on Earth.