How do we pollute our environment?

1
How do we pollute our environment?

• List 5 ways

2
Air pollution can you think of any examples?
3
Water pollution can you think of any examples?
4
Land pollution can you think of any examples?
5
Impact on the Carbon Cycle

• List as many ways that human activity may disrupt
  the Carbon Cycle
• Use your cycle diagram to help you
• Discuss

6
What are fossil fuels?

• Fossil fuels are hydrocarbons, primarily coal,
  petroleum, fuel oil and gas.
• They formed from the fossilised remains of dead
  plants and animals by exposure to heat and
  pressure in the Earth's crust over hundreds of
  millions of years

7
Whats the problem?

• The burning of fossil fuels by humans is the
  largest source of emissions of carbon dioxide,
  which is one of the greenhouse gases that
  contributes to global warming.
• This means that the surface temperature of the
  Earth will rise in response.

8
Fossil Fuels
9
What can we do?

• List at least 5

10
Indicator species

• Looking at LichensLichens are the crusty
  organisms that grow in places such as on rocks
  and bricks.
• You can also find them on gravestones and the
  side of trees.
• They range in colour from grey-green to orange
  and red.

11
Lichens

• Sulphur dioxide gas is produced when fuels like
  coal and oil are burned.
• Some lichens are very sensitive to air pollution
• In areas of low air pollution
• -a large variety of different lichen species
• -lichens tend to be big and fluffy
• In areas of high air pollution
• -very limited variety of lichen species
• -lichens tend to be small and crusty
• We can use lichens as an indicator species.
• Explain what you think an indicator species is!

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