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Global Issues

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Global Issues
The Fact:
4000 islands in Indonesia will drown in the upcoming years due to rising sea levels caused by Global Warming.
#MesueseAurela

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Global Issues

  1. 1. Global Issues #MesueseAurela
  2. 2. Global Warming The Fact: 4000 islands in Indonesia will drown in the upcoming years due to rising sea levels caused by Global Warming. #MesueseAurela
  3. 3. What is Global Warming? Global Warming refers to the increasing temperature of earth's surface due to the excess heat trapped into our atmosphere. This takes place due to enhanced green house effect. #MesueseAurela
  4. 4. What is Greenhouse effect? The phenomenon whereby the earth's atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide and methane that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface. This keeps the Earth warm and a nice place to live in, keeping us all happy. #MesueseAurela
  5. 5. “Enhanced” greenhouse effect These days, human activities produce too much greenhouse gases that makes the earth’s atmosphere thicker, making it impossible for the Sun rays to reflect back into the atmosphere. Hence, the Sun rays get stuck into the earth's atmosphere, making it too hot to live in. This is called Enhanced Greenhouse Effect and is what's causing Global Warming. #MesueseAurela
  6. 6. Greenhouse Gases - Carbon-dioxide - Methane - Nitrous Oxide - Chlorofluorocarbons - Surface Ozone
  7. 7. Carbon Dioxide - Produced by burning fossil fuels such as gas, petrol, aviation petrol, diesel and oil#MesueseAurela
  8. 8. Methane - Produced when you burp. - Twenty –one times more effective than carbon dioxide in blocking the escape of radiant heat. #MesueseAurela
  9. 9. Nitrous Oxide - Produced from burning forests, car exhaust, jet fuel and artificial fertilizers. #MesueseAurela
  10. 10. Chlorofluorocarbons (CFCs) - Invented in 1920s. - Were found in aerosol spray cans and as coolant gases on refrigerators. - Non-poisonous. - Odourless. - Were once called ‘wonder chemicals’. - Stable and cheap to produce. #MesueseAurela
  11. 11. Surface Ozone - Generated as a part of photochemical smog. - Produced by the action of sunlight on motor vehicle and industrial pollution. #MesueseAurela
  12. 12. Australian greenhouse gas production Carbon dioxide Methane Nitrous Oxide Other #MesueseAurela
  13. 13. Evidence of global warming #1- Glaciers have been melting. #MesueseAurela
  14. 14. Evidence of global warming #2- Icebergs are breaking off. #MesueseAurela
  15. 15. Evidence of global warming #3- Ice sheet in Greenland is getting thinner. #MesueseAurela
  16. 16. Evidence of global warming #4- Coral reefs in the Caribbean are now permanently bleached. #MesueseAurela
  17. 17. Evidence of global warming #5- Alpine plant species has fallen. #MesueseAurela
  18. 18. Evidence of global warming #6- Snowgums in Australia have shifted 40 meters up the mountain. #MesueseAurela
  19. 19. El Niño effect El Niño effect occurs in which trade winds weaken or reverse, allowing warmer water to move towards the west coast of South America around Christmas time. The result is that Australia experiences drought, and South America experiences increased rainfall. #MesueseAurela
  20. 20. #1- Think Green #2- Do Green #3- Share Green Save The Earth #MesueseAurela

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