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  1. 1. DEFORESTATION <ul><li>By: </li></ul><ul><li>Rosa Gámez </li></ul><ul><li>María Muñoz </li></ul>
  2. 2. What is deforestation? <ul><li>Deforestation is the permanent destruction of indigenous forests and woodlands. Deforestation has resulted in the reduction of indigenous forests to four-fifths of their pre-agricultural area. Indigenous forests now cover 21% of the earth's land surface. </li></ul>
  3. 3. Environmental problems <ul><li>Atmospheric . Deforestation is a contributor to global warming and is often cited as one of the major causes of the enhanced greenhouse effect. </li></ul><ul><li>Hydrological. The water cycle is also affected by deforestation. </li></ul><ul><li>Soil. Deforestation generally increases rates of soil erosion. </li></ul><ul><li>Ecological. The removal or destruction of areas of forest cover has resulted in a degraded environment with reduced biodevirsity. </li></ul>
  4. 4. HOW DOES IT HAPPEN? <ul><li>Conversion of forests and woodlands to agricultural land to feed growing numbers of people. </li></ul><ul><li>Trees are being destroyed for opening up forests for agriculture. </li></ul><ul><li>Felling of trees for firewood and building material. </li></ul>
  5. 5. Control <ul><li>Reducing emissions. Major international organizations, including the United Nations and the World Bank, have begun to develop programs aimed at curbing deforestation . </li></ul><ul><li>Farming. New methods are being developed to farm more intensively, such as high-yield  hybrid  crops,  greenhouse ,  autonomous building  gardens. </li></ul><ul><li>Reforestation. In many parts of the world, especially in East Asian countries, reforestation and  afforestation  are increasing the area of forested lands . </li></ul>
  6. 7. THE END