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Latin America’s Environmental Concerns

Latin America’s Environmental Concerns. Unit 7. #1 Air Pollution in Mexico City. nearly 20 million people live here second most populated city in the world--Tokyo is first city’s population & location contribute to its bad air pollution problem

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Latin America’s Environmental Concerns

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  1. Latin America’s Environmental Concerns Unit 7

  2. #1 Air Pollution in Mexico City • nearly 20 million people live here • second most populated city in the world--Tokyo is first • city’s population & location contribute to its bad air pollution problem • considered to be the most polluted city in the world

  3. #2 Air Pollution Over Mexico City

  4. #3 Air Pollution Over Mexico City

  5. #4 Causes of Air Pollution • huge population = lots of cars • high elevation--less oxygen so fuels don’t fully burn --higher level of gases that harm eyes, lungs, & the heart • Sierra Madre mountains surround city & trap in polluted air

  6. #5 Surrounded by Mountains…

  7. #6 Solutions • To reduce air pollution, the city promotes public transportation (buses, subway). • The city is also testing buses that run on cleaner burning fuels. • new restrictions on car use • workshops to teach people about the environment

  8. #7 Amazon Rainforest • largest rainforest in the world • most of the rainforest is in Brazil • experiences a hot, humid, & rainy tropical climate • home to a huge variety of plants, trees, insects, birds, & animals • produces 1/3 of the earth’s oxygen

  9. Go to WWW.Brainpop.com and watch the video on Tropical Rainforests

  10. #8 Amazon Rainforest

  11. #9 Destruction of the Amazon Rainforest • In the 1950s, the Brazilian government began building a major highway system. • opened rainforest to loggers • Brazil’s population has increased--parts of rainforest are being cut down to create farms

  12. #10 Before…

  13. #11 After…

  14. #12 Results of Deforestation… • Plants & animals are losing their homes; many are endangered, and some are becoming extinct. • Loss of trees increases carbon dioxide, a gas that contributes to global warming.

  15. #13

  16. #14

  17. #15

  18. #16 Solutions… • The government is working to fix the deforestation problem by passing laws on cutting down too many trees. • What else can be done?

  19. #17 Oil-Related Pollution in Venezuela • One of the world’s leading producers of oil • has been producing oil for about 100 years • Oil production has boosted economy • Main source of income for many people • Oil production results in toxic wastes, air pollution, & oil spills

  20. #18 Problems… • Venezuela’s coast has become polluted with oil. • oil spills have damaged the environment • hurts the ability of fishermen to earn a living

  21. #19 Result of Drilling for Oil…

  22. #20Problems… • Venezuela leads South America in the production of carbon dioxide, which is a by-product of burning fossil fuels like natural gas & oil. • can cause breathing problems for children & elderly • contributes to global warming

  23. #21Problems… • Oil businesses have damaged Lake Maracaibo (largest lake in South America). • Large amounts of oil have been removed from the area so the land is changing. • eastern shore of the lake is dropping about three inches a year • government is having to take precautions to keep water from flooding into nearby towns

  24. #22 Why oil? • Money from selling oil is the country’s main source of income. • Venezuelans are motivated to keep producing, selling, and burning oil--and polluting.

  25. #23 Solutions… • People are becoming aware that the cost in the long term may be too great. • Groups are calling for renewable energy sources and the clean-up and prevention of pollution.

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