latin america environmental issues
TRANSCRIPT
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Latin America’s Environmental Concerns
Latin America’s Environmental Concerns
Unit 7 NotesUnit 7 Notes
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Air Pollution in Mexico CityAir 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
◊ 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
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Air Pollution Over Mexico CityAir Pollution Over Mexico City
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Air Pollution Over Mexico CityAir Pollution Over Mexico City
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Causes of Air PollutionCauses of Air Pollution1. huge population = lots of cars2. high elevation--less oxygen so fuels
don’t fully burn--higher level of gases that harm eyes,
lungs, & the heart
3. Sierra Madre mountains surround city & trap in polluted air
1. huge population = lots of cars2. high elevation--less oxygen so fuels
don’t fully burn--higher level of gases that harm eyes,
lungs, & the heart
3. Sierra Madre mountains surround city & trap in polluted air
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Surrounded by Mountains…Surrounded by Mountains…
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SolutionsSolutions◊ 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
◊ 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
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Amazon RainforestAmazon 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
◊ 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
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Amazon RainforestAmazon Rainforest
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Destruction of the Amazon RainforestDestruction 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
◊ 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
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Before…Before…
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After…After…
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Results of Deforestation…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.
◊ 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.
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Solutions…Solutions…
◊ The government is working to fix the deforestation problem by passing laws on cutting down too many trees.
◊ What else can be done?
◊ The government is working to fix the deforestation problem by passing laws on cutting down too many trees.
◊ What else can be done?
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Oil-Related Pollution in VenezuelaOil-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
◊ 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
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Problems…Problems…
◊ Venezuela’s coast has become polluted with oil.• oil spills have damaged the
environment• hurts the ability of fishermen to earn
a living
◊ Venezuela’s coast has become polluted with oil.• oil spills have damaged the
environment• hurts the ability of fishermen to earn
a living
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Result of Drilling for Oil…Result of Drilling for Oil…
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Problems…Problems…◊ 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
◊ 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
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Problems…Problems…◊ 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
◊ 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
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Problems…Problems…
◊ Money from selling oil is the country’s main source of income.
◊ Venezuelans are motivated to keep producing, selling, and burning oil--and polluting.
◊ Money from selling oil is the country’s main source of income.
◊ Venezuelans are motivated to keep producing, selling, and burning oil--and polluting.
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Solutions…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.
◊ 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.