Environmental Problems

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Environmental Problems

  1. 1. Environmental problems
  2. 2. What is an environmental problem?Situation caused by activities, processes orhuman behaviour: economic, social, political,among others, that disrupt the environment andcause negative impacts on the environment, theeconomy and society.
  3. 3. Environmental problematicBiotic factors; organisms, populations , communities, ecosystemsAbiatic factors: weather, hydrology, geologyAnthropic factors: culture Culture: Manner in which men relates himself with his physical surroundings.
  4. 4. Overpopulationhttp://images.google.com/url?q=http://senescence.info/overpopulation.jpg&sig=__HWRp05Jk4j6RjIwaUgzX9bEQVbg=
  5. 5. Overpopulation Transformation of landscape Change in the use of land Allocation of fragile ecosystems – wetlands -Demand of resources and services -Pollution
  6. 6. Overpopulation
  7. 7. Cambio climático
  8. 8. Green house effectNatural effect Life conditionsHuman actions Modification of the conditions Increase in the amount of solar radiation.
  9. 9. • The Green housecontributes activity that most effect to CO2 emissions is the burning of fuels fossils for the generation of energy, it causes around 70-75% of emissions
  10. 10. Principal countries, producers of CO2 http://www.solcomhouse.com/co2maapp.gif
  11. 11. Destruction of the ozone layer
  12. 12. Destruction of the ozone layer
  13. 13. Destruction of the ozone layer
  14. 14. Loss of biodiversityCauses of extintion(4 horsemen of the ApocalypseJared Diamond)- Exploitation- Loss of Habitat-Chain, mass extinctions- Introduction of exotic invasive species 3,5 millones de barriles de petróleo al año.
  15. 15. Loss of biodeversity•Exploitation
  16. 16. PÉRDIDA DE BIODIVERSIDADCAUSAS DE EXTINCIÒN:(4 jinetes del Apocalipsis Jared Diamond)•Sobre explotación•Pérdida de hábitat•Extinciones en cadena•Introducción de especiesexóticas invasivas 3,5 millones de barriles de petróleo al año.
  17. 17. Loss of biodeversity DEFORESTATION 70% Forest Prairies Wetlands
  18. 18. Loss of biodeversity DEFORESTATION % of the total tropical rain forests by country 35 30 25 20 15 10 5 0Only 10 countries contain more than 75% of all tropical forests on the planet
  19. 19. Loss of biodiversity The greatest extinction of the modern era•Extinción en cadena
  20. 20. PÉRDIDA DE BIODIVERSIDADCAUSAS DE EXTINCIÒN:(4 jinetes del Apocalipsis Jared Diamond)•Sobre explotación•Pérdida de hábitat•Extinciones en cadena•Introducción de especiesexóticas invasivas 3,5 millones de barriles de petróleo al año.
  21. 21. -Cause of 40% of extinctions in Colombia second cause of extinction of species in the world-"National Plan for the prevention, control and management of the species introduccidas, exotic, invasive andtransplanted." "(IAvH, The Nature Conservancy.)" (GNP - CBD)
  22. 22. Biological invasions
  23. 23. Facebook: Carrera de EcologíaFacultad de Estudios Ambientales y RuralesUniversidad Javeriana3208320 ext. 4815 o 4836

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