1、Global Warming,Name: Han NaishunFrom:,Agriculture and biotechnology instituteinstitute of entomology,November 7, 2012,1.What causes global warming?,Population,Forest reduce,Fossil fuel combustion,1,2,3,Carbon dioxide and the greenhouse effect,Improving peoples life quality,Carbon dioxide is like a q
2、uilt covering the earth,quantity of heat loose not go out,2.The dangers of global warming.,If global warming continues, polar bears will have no place to stay, and our cities will be flooded.,3.Things to be done,Governments should take measures to deal with global warming.,The role of government is
3、strong, as long as the government increase the strength, global warming will be effectively slowed.,1,2,The responsibility of school,Students should be educated with the great significance of stopping global warming and try their best to hold kinds of activities.,1,2,Social activities help urge more and more people to participate in activities to stop global warming.,Its our show time!,If we ignore the global warming, the world will be messed up.,Many species will be extinct. And we will live nowhere.,Thanks!,Please keep the earth green!,
