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The decline of the forests. Every second an area the size of a football field in the rain forest around the world vanishes. Rain forests covered 14% of.

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Presentation on theme: "The decline of the forests. Every second an area the size of a football field in the rain forest around the world vanishes. Rain forests covered 14% of."— Presentation transcript:

1 The decline of the forests

2 Every second an area the size of a football field in the rain forest around the world vanishes. Rain forests covered 14% of the earth’s surface. But by now they cover 6%. The experts believe that the rest of the rain forest will vanish within the next 40 years. This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

3 Over half the species of animals, insects and plants will vanish because of the destruction of the rain forest.. 137 species disappear every day. This amounts to 50,000 annually. 121 medications are being created by using the plants of the rain forest but only 1% of the plants have been proven by scientists. This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

4 500 years ago there were10 million Indians living in the rain forest, nowadays there are fewer than 200,000. In Brazil alone 90 of the traditional tribes in the rain forest have disappeared since the 1900s. This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

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6 Satellite Pictures The satellite pictures on the next slides show a section of the rain forest in Bolivia in 1975, 1992 and 2000. What do you think are the red areas and the white areas? What is the difference between the three pictures? Discuss your views in pairs.

7 Credit: U.S. Geological Survey

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10 Information The red areas in the pictures show live trees whilst the white areas show where the forest has been deforested. Did you notice the enormous difference between the three pictures though they were not taken over a long period.

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12 This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

13 This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

14 This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

15 These images provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

16 This image provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

17 These images provided and copyrighted by Raintree Nutrition, Inc. All rights reserved. http://www.rain-tree.comhttp://www.rain-tree.com

18 Global Warming and Trees as a natural resource

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