Human Effect on Environment

The effects of that man has on a the environment has at time been thought as good but at the same time they have hurt. The building of Dams for instant has had a huge change on the land. The environmental consequences of large dams are numerous and varied, and includes direct impacts to the biological, chemical and physical properties of rivers and riparian (or “stream-side”) environments. (“Environmental impacts of,” 2002) Not only does is change the flow of a river is creates a reservoir that floods the land. Changing the way the river affects the land. Sediment that flows down the river settles in areas that it maybe not have settled. Man made dams changes fish migrations which can change the feeding pattern of other animals. Not only does it effect nature but also effects people down river. Dams reduce the amount water that people down stream receive. But at the same time if water is release to fast it may flood areas down stream. We have a big effect on the environment by the choice we make to find way to make our life better.

What other environmental effects have human caused. Well along with Dams the on that seem to be having a effect and goes hand and hand with dams is the need to clear land to build and farm on on. This has not bigger effect on the land and nature would the cutting down of the Amazon. Most of this lost land has been replaced with grass for cattle. In 2008, the Brazilian government announced that the rate that the Amazon was being destroyed had sped up during the time of the year that it normally slows down. In just five months in 2007, more than 3,200 square kilometres were deforested. The amazon continues to reduce in size from deforestation.  (“What is the,” 2012) This effect can and is being effected globally with the as the increases CO2 in the atmosphere. Also the loss of habitat for the animals in the amazon. These are two very man made problems. They are two very possible units to look at in geography. Students should learn what is happening and look at issue they will need to deal with in their lifetime.

 

Environmental impacts of dams. (2002). Retrieved from http://www.internationalrivers.org/environmental-impacts-of-dams

 

What is the human impact on the amazon rainforest?. (2012). Retrieved from http://theamazingamazonia.weebly.com/human-impact.html

 

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