Global warming is caused by greenhouse gases trapping heat in the atmosphere. The main greenhouse gases are released by human activities like burning fossil fuels and deforestation. As the planet warms, weather patterns are changing, polar ice caps and glaciers are melting, and sea levels are rising. Disease is also spreading. To mitigate these effects, humans must transition to clean energy sources like solar, wind, and hydroelectric power and reduce fossil fuel use and deforestation.

1. Global Warming: Causes and Effects A presentation by: Emily Swain Steve Townsend Amanda Washington Keenan Whitesides Linsdey Williams

4. Global Warming and Cooling is a cycle.

6. The average temperature is rapidly accelerating.Year vs. Average Global Temperature http://www.bbc.co.uk/schools/gcsebitesize/science/images/global_temp_graph.gif 1960 1940 1980 1920 2000 1900 1880 1860

9. Those Greenhouse Gases are released when humans burn fossil fuels – fuels containing Carbon.http://www.lilithgallery.com/articles/environmental/images/Global-Warming-02.jpg

12. Waste from farm animals (like cows) releases large amounts of methane into the atmosphere.

13. Deforestation

16. There will also be an abundance of freshwater from caps in oceans

18. We need to take the following steps to insure minimal disruption:

19. Invest in clean energy – no more fossil fuels

20. Fossil fuels include Coal, Oil, Natural Gas.

21. Some alternatives are: Solar Power, Wind Power, Geothermal Power, Hydroelectric Power, Biomass Powerhttp://www.consumerenergyreport.com/wp-content/uploads/2009/09/RenewableEnergy11.jpg http://www.thegreenbubble.org/images/renewable-energy.gif

23. Effective, yet currently expensive.http://www.conserve-energy-future.com/Images/Solar_Power.jpg http://www.alternative-energy-news.info/images/technical/solar-power.jpg

25. Effective, yet currently expensive.http://thecostaricanews.com/wp-content/uploads/2009/10/windpower.jpg http://www.alternative-energy-news.info/images/technical/wind-power.jpg

27. Effective, yet currently very expensive to set up and use efficiently.http://visual.merriam-webster.com/images/energy/geothermal-fossil-energy/production-electricity-from-geothermal-energy.jpg

29. Effective, yet currently expensive.

30. Very disruptive to water ecosystems.http://www.alternative-energy-news.info/images/technical/hydro-power.jpg

32. Not as effective, also very dangerous.

33. Disrupts natural habitats in large amounts.http://www.energy.ca.gov/biomass/images/biomass_graphic.jpg

35. It is because of humans that the average global temperatures are rising.

36. The only way to stop the increase is to:

37. Change the way that we are living

38. Use clean energy

39. Cease the burning of fossil fuelshttp://www.stuffintheair.com/images/global-warming-effect-21304194.jpg