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DEFROESTATION IN THE AMAZON
G1-OC Class Yisel & Maggie May,2010
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Quiz Which country has the biggest portion of the Amazon rainforest?
- Brazil What amount of the world’s fresh water is in the Amazon River basin? - 20% How many countries have part of the Amazon within their borders? - nine Which is the only river in the world longer than the Amazon. - Nile in Africa
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Agenda Background History Causes Effects Solutions Conclusion
References
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What is deforestation? By logging and burning
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Where is the Amazon?
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Lungs of our planet The ninth largest if it were a country
Recycling carbon dioxide into oxygen More than 20% of Earth’s oxygen 10 million species : plants, animals, and insects One-fifth of the world’s fresh water
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History 1500 1600 1700 1800 1900 2000 Europeans Rubber production
1888 1912 Rubber production Government policies 1994 Environmental movement 1995 new government incentives 2003 Brazilian cattle exports outpace Domestic markets
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Breakdown of Causes
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Government policies Land grants for deforesting and colonizing
Credit and tax incentives for cattle ranching Roads built through the Amazon that increase access
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Other causes Historic Factors : war, industrialization, colonization, etc. Population Growth : more people → more inhabited land → more deforestation Urbanization : city area increases → forest recede South America has highly urban populations. Urbanization levels are expected to reach 85 per cent by the year 2025
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Other causes Climate change : climate change → local vegetation recede → deforestation Green house effect CO, Emission increase cause : the clearing of land for cattle, the need for land in increased soybean production, illegal logging.
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Effects Rondônia, Brazil. Top:June 1985 Bottom: August 1992
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Effects Loss of biodiversity : no trees → no shelter → no animals
Soil erosion : no trees → no beneficial soil Ground water table : no soil or less soil → retain no or less water → the ground water levels reduced Floods : no trees → no (major) obstruction to flowing water →no chance to percolate into the ground→ cause flood Drought : water gone by flood / evaporation → drought Less carbon conversion : contributing to global warming
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Solutions Reforestation Legislation Wildlife sanctuaries Cities
Incentive to Corporate Commercial Forest Plantations Water Management
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What can be done? Avoid beef products from Brazil!
Recycling : more recycle → less disposable products → decrease deforestation Gas fireplaces : Use gas → less wood → deforestation decrease International Workshop on Solutions to Deforestation for Cattle Expansion is on Facebook
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Conclusion Background History Causes Effects Solutions
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References http://www.mongabay.com/brazil.html
news.mongabay.com/2005/0827-brazil.html
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