Climate Change

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  • Created by: freddieam
  • Created on: 06-04-16 21:54
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  • Climate Change
    • Carbon dioxide, methane and water vapour in the atmosphere help to keep the Earth warm by trapping heat energy – this is called the greenhouse effect 
      • Some human activities put more of these gases into the air. Burning fossil fuels gives out carbon dioxide; cows and rice fields give out methane 
    • There is evidence that the increasing proportion of carbon dioxide in the atmosphere is causing a slow increase in temperature which is leading to climate change 
    • Scientists could reduce the amount of carbon dioxide in the atmosphere by adding iron to the oceans – this is called iron seeding. 
      • It encourages plankton to grow, which use up carbon dioxide as they photosynthesise 
    • Carbon dioxide can be removed from the atmosphere and used to make hydrocarbons 
      • These could be used as a replacement for fossil fuels


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