World's Rivers in Crisis

[Scuba]

Source: Milwaukee Journal Sentinal Online

A lifeless "dead zone" the size of Massachusetts in the Gulf of Mexico. Excessive irrigation. Mercury and pesticides in fish. Declining river water quality.

For the first time, scientists from around the world have assessed how the most critical threats to rivers affect people and aquatic life.

Their diagnosis: It's a crisis.


Read more: http://www.jsonline.com/features/health/104017863.html