Effects of climate change

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Effects of climate change

  1. 1. Negative Effects of ClimateChange
  2. 2. Changing length of seasons – as global temperatures risediseases that are normally only found in hot counties arebeginning to be found further north for example, Italy is nowhaving to deal with Malaria.
  3. 3. Changing patterns of rainfall
  4. 4. More frequent, stronger hurricanes,tornadoes and flash floods
  5. 5. More frequent, stronger hurricanes,More frequent, stronger hurricanes,tornadoes and flash floodstornadoes and flash floods• Hurricanes only form over seas that are above 27oC.• As global temperatures rise, so does thetemperature of the sea. This means that a larger areaof the ocean now produces hurricanes.• This will cause not only an increase in number butalso an increase in intensity making the hurricaneslarger and more destructive with stronger winds.
  6. 6. Reduction in agricultural output - flood
  7. 7. Reduction in agricultural output -drought
  8. 8. Reduction in agricultural outputReduction in agricultural output• The worlds most important foods are rice and wheat andthese are grown only in certain places around the world.• The USA, Canada and Russia are known as the ‘wheat belt’.• These countries are likely to experience changes to climatebut it is not clear if the impact will be positive or not.• Almost every country in the world depends on food importsand at any moment the world has about 40 days worth offood in store.• If climate change reduces harvests then food prices will riseand some poorer nations will be unable to afford the cost offood leading to famine, especially sub-Saharan Africa (thearea of Africa south of the Sahara desert).
  9. 9. Flooding of low lying cities
  10. 10. Flooding of low lying citiesFlooding of low lying cities
  11. 11. One negative effect of climate change is theretreat of glaciers. Explain two other negativeeffects of climate change (6 marks)

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