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In
many areas, water is regulated and distributed by governments. In the
United States, it's regulated by the Safe Drinking Water Act. However,
government control isn't always in the best interests of all people. In
the 1930s, to irrigate cotton fields, the Soviet government created
canals to divert the rivers that fed the Aral Sea (located between
Kazakhstan and Uzbekistan). As a result, the surface area of the sea has
shrunk by more than 50 percent and its volume by 80 percent over the
past 50 years. Its salinity increased and it became polluted with
pesticides, fertilizer runoff and industrial waste. The loss of the sea
meant the decline of the commercial fishing industry, which helped to
send the region into poverty. The pollutants from the exposed seabed
have been found in the blood of Antarctic penguins. Source: http://science.howstuffworks.com |
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