Environmental problems



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Environmental problems


Kenyan proverb
Treat the Earth well. It wasn’t given to you by our parents. It was loaned to you by our children.
Pollution
Waste
Deforestation
Endangered species
Greenhouse effect
Acid rain
Global warming
Air pollution
What causes air pollution?
  • car exhausts
  • emissions from industrial production (factories, power stations) - dust, smoke, smell…

Which gases in the air are poisonous?
  • sulphur dioxide (SO2)
  • nitrogen oxide (NO)
  • carbon dioxide (CO2)

Water pollution
What causes water pollution?
  • industrial waste
  • chemical fertilizers and pesticides
  • oil refineries
  • accidents of huge cargo ships
  • dumping toxic pollutants in the water

Waste
  • industrial waste
  • domestic waste
  • litters in the streets

Recycling
If yes, what?
Do you recycle?
If not, why?
Endangered animals
What animals are in danger?
Why are the animals in danger?
What are they hunted for?
Deforestation
Why are the trees / rainforests cut down?
What does it cause?
  • rainforests help to control global warming because they absorb carbon dioxide
  • in recent years large areas of rainforests have been destroyed (trees have been cut down – land / wood is needed for farming, firewood, buildings, furniture => millions of animals and plants are killed too)
  • rainforests grow on poor soils and when they are cut down or burned, the soil is washed away in the tropical rains, and these areas may turn to desert

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