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Climate change
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Climate change



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  • These are two environmentalist who wants to pay attention to global warming. 
  • Global average temperatures are expected to increase by about 2-13°F (1-7°C) by the end of the century. That may not sound like a lot, so what’s the big deal? The problem is that small changes in global average temperature can lead to really large changes in the environment. Let’s look at some of the expected changes.


  • 2. What is Climate Change
    • Climate change  is a long-term change in the statistical distribution of  weather  patterns over  periods of time  that range from decades to millions of years.
    • It is a regional change in temperature and weather patterns.  
    • It is not just a nationwide issue, but a global issue.
  • 3.  
  • 4. Carbon Dioxide Causes
    • Carbon Dioxide from :
    • - Power Plants (40% of carbon emissions)
    • - Cars (33% of carbon emissions)
    • - Airplanes (causes an estimated 3.5% of global warming)
    • - Buildings (12% of carbon emissions)
    • - Deforestation (responsible for 20-25% of carbon emissions)
  • 5. The  greenhouse effect  is a process by which thermal radiation from a planetary surface is absorbed by atmospheric  greenhouse gases , and is re-radiated in all directions. Since part of this re-radiation is back towards the surface, energy is transferred to the surface and the lower atmosphere. As a result, the temperature there is higher than it would be if direct heating by solar radiation were the only warming mechanism The  G reenhouse E ffect  
  • 6.  
  • 7. The causes
    • The large majority of the Carbon Dioxide emissions come from humans
  • 8.
    • Human Causes
    • Increasing green house gas emissions from burning fossil fuels-oil, coal, gas
    • Pollution, smog from factories
    • Large forests have been cut down (trees absorb CO 2 and pollution, deforestation creates about 6 billion tons of CO 2 per year)
    • Increasing world population-more people requires more food, energy, transportation, etc. Farms animals release methane from their wastes.
    • More people also means more CO 2 production from respiration and less trees to make room for human population
  • 9.  
  • 10. Farm Animals Release Methane From T heir Wastes
  • 11.
    • Natural Causes
    • T he arctic tundra and wetlands release methane, a greenhouse gas
    • Earth naturally has a cycle of climate change that occurs every 40, 000 years
    • T he sun’s solar energy output is changing and naturally increases Earth’s average temperature by about 1 ºC every century
    • Earth’s orbit and tilt alter in relation to the sun, which changes solar energy output
  • 12. Deforestation
  • 13. The C onsequences
    • R ise in average sea level
    • C hanges in  rain patterns
    • Increase of extreme climate events
    • C onsequences on the flora (plants) and fauna (animals)
    • C hanges in agricultural yields
  • 14.
    • - Global warming is a worldwide problem, and all countries are going to have to work together as one in order to prevent one of the greatest threats to mankind and our environment.
  • 15. Why should we care? Global average temperatures are expected to increase by about (1-7°C) by the end of the century.
  • 16.
        • Produce more fuel-efficient vehicles
        • Reduce vehicle use
        • Improve energy-efficiency in buildings
        • Develop carbon capture and storage processes
        • Increase solar power
        • Decrease deforestation/plant forests
        • Improve soil carbon management strategies
    What next—what can we do?
  • 17. Alternative Energy Sources
  • 18. Help Save Earth
  • 19.  
  • 20. Prepared By
    • M.Feyzi CAVUSOGLU