Causes and Solutions to Global Warming
- Created by: 12bmahoney
- Created on: 18-02-17 10:26
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- Explain the causes of global warming (8 marks)
- The greenhouse effect
- The burning of fossil fuels produces carbon dioxide which creates a barrier in the atmosphere than heat can get into but not out of, causing the temperature to rise. Humans are now producing far more carbon emissions, so the temperature is rising
- Natural climate change
- Some scientists claim it is a result of natural changes because the warmest periods over the last 10,000 years happened well before humans started producing carbon footprints . They say that if the greenhouse effect were true, the troposhpere would be heating up faster than the earths surface but it does not seem to be
- Solar activity
- Some scientists claim that changes in the earth's temperature are caused by the amount of radiation coming from the sun. When solar activity is high, fewer clouds form so more of the sun's heat reaches earth and heats it up
- Possible solutions
- Produce electricity through means that don't produce carbon dioxide, such as solar and wind. In June 2008, the UK government announced that by 2050 there will be no carbon emissions from Britain's power stations
- Car manufacturers are using ethanol, biodiesel, electric batteries, and hydrogen to power cars without carbon emissions. However biofuels (ethanol and biodiesel) are produced from crops which could be used for food
- Increased use of public transport (trains are by far the lowest carbon emission form of transport) could greatly reduce carbon emissions
- It is possible to increase the efficiency and reduce the pollution produced by cars. Cars are being made to be more efficient and even though there are more cars on the road there are less emissions than before
- The greenhouse effect
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