non-renewable power resources: fossil fuels. non-renewable power resources most important power...
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NON-RENEWABLE NON-RENEWABLE POWER POWER RESOURCES: Fossil RESOURCES: Fossil fuelsfuels
Non-renewable Power Resources
Most important power resources in the world at present
Heavy reliance on fossil fuels causes many environmental problems.
Non-renewable Power Resources
Power Resources Consumption Pattern (1997)
coal and oil:– fossil fuels– non-renewable– will be used up one day
widely used:– large reserves– need low level of technology
Non-renewable Power Resources
Burning coal and oil:– releases carbon dioxide
greenhouse gastraps heatstrengthens natural greenhouse
effectglobal warming
Non-renewable Power Resources
Non-renewable Power Resources
Global warming
More heat is absorbedand stored by the
increased amount of carbon dioxide
More heat is absorbedand stored by the
increased amount of carbon dioxide
The earth is getting warmer and warmerThe earth is getting warmer and warmer
Burning coal and oil:– releases sulphur dioxide
acid rainkills plants and living
organisms in water
Non-renewable Power Resources
The formation and effects of acid rain
SO2 and nitrogen oxides combine with moisture in the air to form weak acids in the air
SO2 and nitrogen oxides are produced when fossil fuels are burned
The pollutants are blown to other areas
Water vapour
Buildings are damaged
SO2 NOX
SO2NOX
Dry deposition
Forests are destroyed
Water in lakes and rivers becomes more acidic.
Plants and fish are killed
Human health is affected
Acid rain falls
Acid rain in China
Which areas are most affected by
acid rain? Do you know why?
Burning coal:– releases black smoke and
dustlowers visibilityAffects air transport
–affects people’s health
Non-renewable Power Resources
Mining destroys natural landscape
Non-renewable Power Resources
Mining destroys natural landscape
Non-renewable Power Resources
Mining:– trees are cut down–slopes are leveled–soil erosion–serious flooding
Non-renewable Power Resources
Water for cooling:–heated up–drains into rivers and seas– thermal pollution–affects living organisms in
water
Non-renewable Power Resources
Transport of oil by oil tankers:–oil spills and leakages–water pollution
Non-renewable Power Resources