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3 Global warming is not real Binghui, Brads and Kayla


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3 Global warming is not real Binghui, Brads and Kayla

  1. 1. Global Warming is Not Real<br />By Binghui, Brads and Kayla<br />
  2. 2. Global Warming is a Natural Event<br />Some scientists have suggested global warming is due to a natural 1500-year cycle. <br />Climate change is much more likely to be part of a cycle of warming and cooling that has happened regularly every 1500 years for the last million years, authors and scientists Dennis Avery and Fred Singer said.<br />
  3. 3. Continental Drift<br />Continental drift is a natural event and it can change the climate.<br />Over a long period of time, places move to colder regions of the globe other move to tropical regions.<br />
  4. 4. Earth’s Motions ( Milankovich Cycles )<br />The earth’s tilt changes 2 degrees. This change affects radiation received at different latitudes.<br />That may make the climate warmer.<br />
  5. 5. Solar Activity<br />Sunspots cause the sun to give off more energy.<br />Sunspots are cooler areas of gas on the sun surface, if there are not a lot of sunspots then there will be more heat.<br />When the sunspots explode, they raise the heat.<br /><br />
  6. 6. Carbon dioxide<br />100 million years ago there were six times as much carbon dioxide in the atmosphere as there is now.<br /><br />
  7. 7. The Video <br /><br />This website is talking about how global warming is a natural cycle.<br />
  8. 8. Volcanoes<br />Volcanoes throw 30 million tons of carbon dioxide, oceans emit 90 billion tons of CO2 and decaying plants throw 90 billion tons compared to just 6 billion tons of CO2 a year from humans.<br /><br />
  9. 9. Temperature<br />Accurate satellite, balloon, and mountain top observations made over the last three decades have not shown any significant change in long-term rate of increase in global temperature. <br /><br />
  10. 10. Wobbly Earth <br />Sometime the earth’s rotation is not perfect. Sometimes the earth wobbles, causing its temperature to change. <br /><br />
  11. 11. Methane<br />Methane gas is released by dead plants in arctic tundra and wetlands.<br />Methane is a greenhouse gas that causes the temperature to increase.<br /><br />
  12. 12. Water Vapor<br />Water vapor is a greenhouse gas. We have more water than anything on earth.<br />So, more water vapor in the atmosphere will cause the temperature to increase.<br /><br />