About two-fifths of Argentina’s population lives in metropolitan Buenos Aires alone, where heavy traffic leads to significant air pollution. In rural areas, access to safe water and sanitation is limited. Rivers are becoming polluted due to an increase in pesticide and fertilizer use.
Argentina has a relatively complex policy on land protection. There are 190 protected sites, covering a total of 4.4 percent of the country, with a mixture of federal, provincial, and municipal administration. Universities and private individuals also administer a few reserves. Only 1.7 percent (1997) of the land receives significant protection, and only about half of the recognized ecotypes in Argentina are represented in the protected land system. Major ecological threats are hunting and logging in the north, excessive tourism in the south, overgrazing in virtually all areas, and salinization (contamination with salt) of grazing and croplands as a consequence of damming and irrigation projects. "Argentina" © Emmanuel BUCHOT, Encarta, Wikipedia
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