Global Warming Man Made or Natural

... PHYSICS COURSEWORK Case Study CONTENTS Introduction..........................................3-4 Arguments/Discussion Man Made Warming......................................5-7 Natural Warming......................................8-10 Conclusion..........................................11-12 References............................................ 13 INTRODUCTION Global warming is the observed and projected increases in the average temperature of the Earth's atmosphere and oceans. Fig. 1: Definition for global warming: Temp. increase in the last 1'000 years (graph from http://www.globalwarmingart.com/images/b/bb/1000_Year_Temperature_Comparison.png) Fig. 2: Definition for global warming: Temp. increase in the last 150 years (graph from http://www.globalwarmingart.com/wiki/Image:Instrumental_Temperature_Record_png) Fig 3: Definition for global warming: Temp. increase in the last 25 years (graph from http://www.globalwarmingart.com/images/a/af/Short_Instrumental_Temperature_Record.png) Over the past years the earth has been warming. Global warming causes concern from us and leads to issues such as extreme weather conditions, drought and famine. Man made warming theory states that man made CO2 (pollution from power plants, CO2 emissions from cars, etc.) causes the earth to warm; thus will continue warming while some scientists says that human activities doesn't influence global warming in a perceptible way. They say that climate will continue

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