NON-RENEWABLE POWER RESOURCES: Fossil fuels. Non-renewable Power Resources  Most important power resources in the world at present  Heavy reliance on.

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Presentation transcript:

NON-RENEWABLE POWER RESOURCES: Fossil fuels

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 gas  traps heat  strengthens natural greenhouse effect  global warming Non-renewable Power Resources

Global warming More heat is absorbed and stored by the increased amount of carbon dioxide More heat is absorbed and stored by the increased amount of carbon dioxide The earth is getting warmer and warmer

 Burning coal and oil: –releases sulphur dioxide  acid rain  kills plants and living organisms in water Non-renewable Power Resources

The formation and effects of acid rain SO 2 and nitrogen oxides combine with moisture in the air to form weak acids in the air SO 2 and nitrogen oxides are produced when fossil fuels are burned The pollutants are blown to other areas Water vapour Buildings are damaged SO 2 NO X SO 2 NO X 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 dust  lowers visibility  Affects 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

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