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Deforestation andré


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Deforestation andré

  1. 1. Deforestation Work made by: André Ferreira nº4 School D.Pedro I After Before
  2. 2. Introduction  Deforestation is the process of complete and permanent disappearance of forests, currently mostly caused by human activity.
  3. 3. Forests  Forests cover 31% of the land area on our planet. They produce vital oxygen and provide homes for people and wildlife. Many of the world’s most threatened and endangered animals live in forests, and 1.6 billion people rely on benefits forests offer, including food, fresh water, clothing, traditional medicine and shelter.
  4. 4. Deforestation  Deforestation is a particular concern in tropical rainforests because these forests are home to much of the world’s biodiversity. For example, in the Amazon around 17% of the forest has been lost in the last 50 years, mostly due to forest conversion for cattle ranching. Deforestation in this region is particularly rampant near more populated areas, roads and rivers, but even remote areas have been encroached upon when valuable mahogany, gold and oil are discovered.
  5. 5. Top 10 Most endangered forest 2011
  6. 6. Causes of deforestation  Deforestation is typically done to make more land available for housing and urbanization, timber, large scale cash crops such as soy and palm oil, and cattle ranching. The World Wildlife Fund (WWF) reports that much of the logging industry that contributes to deforestation is done illegally.  Common methods of deforestation are burning trees and clear cutting, which is the controversial practice of complete removal of a given tract of forest.
  7. 7. Environmental problems  Atmospheric  Hydrological  Soil  Biodiversity
  8. 8. Conclusion  I conclued that deforestation is very bad to the world, it can be caused by very different problems and that the most common cause is human activity .To prevent this everyone must cut less trees and burn less forests or else in a few years the forests will be like this.