Fixed powerpoint logan.

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  • Fixed powerpoint logan.

    1. 1. Global Warming
    2. 2. Global Warming by Logan Seabolt
    3. 3. by Logan Seabolt
    4. 4. What is global warming?
    5. 5. global warmingnoun-the gradual increase in the overalltemperature of the earths atmospheredue to the greenhouse effect caused byincreased levels of carbon dioxide,chlorofluorocarbons, and otherpollutants.
    6. 6. Global Warming Cause: Carbondioxide emissions from fossilfuel burning power plants.
    7. 7. Global Warming Cause: Carbondioxide emissions from fossilfuel burning power plants.
    8. 8. 40% of U.S. CO2 emissions come from electricity production
    9. 9. Burning coal accountsfor 93% of CO2emissions from theelectric utility industry.
    10. 10. Modern car culture is responsible for about 33% ofCO2 emissions in the U.S.
    11. 11. Increase in usage of chemical fertilizers on croplands also contributes toglobal warming.
    12. 12. The high rate of application of nitrogen-rich fertilizers has effects on the heatstorage of cropland (nitrogen oxides have 300 times more heat-trapping capacitythan carbon dioxide).
    13. 13. How does globalwarming affect our climate?
    14. 14. j
    15. 15. In regions surrounding the Arctic such as Alaska, western Canada, and eastern Russia, winter temperatures have already climbed by 4– 7 degrees Fahrenheit over the last half-century.j
    16. 16. Global warming has also caused glaciers to melt and oceans to rise.
    17. 17. Since the mid-19th century, sea level has been rising.
    18. 18. During the 20th century, sea level rose about15-20 centimeters.
    19. 19. .....roughly 1.5 to 2.0mm/year
    20. 20. As the glaciers melt the arctic habit and land mass are decreasing.
    21. 21. " According to the National Snow and Ice Data Center,"since 1979, winter Arctic ice extent has decreasedabout 4.2 percent per decade.
    22. 22. Global warming has many Arctic species on the decline.
    23. 23. The polar bear would be the first U.S. mammalsofficially deemed to be in danger of extinctionbecause of global warming.

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