global_warming(精品).ppt
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1、What is global warming?backgroundIn recent years,global warming is mentioned more often by scientists.It causes many problems and affects peoples normal life,now has become one of the worst problems confronting human beings.What are the causes of the globe warming?Greenhouse gasParticulates and Soot
2、Particulates and Soot Solar variationDecrease in trees and other plantsWhat impacts did global warming produce?Physical impactsWeather OceansGreenlands glacier thinningSocial impactsFood supply HealthWater resources What can we do?Plant more treesUse more clean energy Set policiesDevelop international corporation
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