20100427 zwolle comenius_geo

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20100427 zwolle comenius_geo

  1. 1. Lack of fresh water<br />
  2. 2. What will happen when there is no fresh water.<br />We will die.Cause we are thirsty.And we will not be healthy.And then only the fish and other animals who live in salt water will survive.<br />
  3. 3. Solution 1: don't waste water.<br />We don’t have to waste too much water.<br />Cause when we just do the dishes we waste water.When we take a shower we waste very much clean (fresh) water.When we wash the car we waste water.<br />What can we do about this.<br />When you have a washing machine its better for water.Take a shower for 5 minutes.Go to a carwash, they take care of water<br />
  4. 4. Solution 2: we have to save the rainwater and clean it. <br />If we catch up the rain water we can clean it.Then we can use it for all kind of things.After cleaning it is normal fresh water.<br />
  5. 5. Causes of flooding <br />Temperature rises<br />Melting glaciers<br />Monsoon rain<br />
  6. 6. Consequences <br />Cities become flooded<br />Climate refugees<br />Land area become flooded<br />
  7. 7. Solutions <br />Dikes <br />Floating houses<br />Walls<br />Evacuation <br />
  8. 8. Dikes <br />
  9. 9. Floating houses<br />
  10. 10. Walls <br />
  11. 11. Evacuation <br />
  12. 12. SOLUTIONS TO DESERTIFICATION<br />
  13. 13. DROUGHT<br />Aforestation.<br />Terracing the land.<br />Cover crops.<br />
  14. 14. DEFORESTATION<br />Re-plant trees.<br />Planting grasses. <br />
  15. 15. OVERCULTIVATION<br />Crop rotation can help maintain the productivity of the soil.<br />
  16. 16. POOR IRRIGATION<br />Make sure the water is not evaporated on the surface. <br />Salt traps prevent salts from reaching the surface of the soil.<br />It is important that young trees are fenced off to prevent the grazing by animals. <br />OVERGRAZING<br />
  17. 17. The End<br />

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