Lecture 22 - Climate Change part 3

Lecture 22 - Climate Change part 3 - Natural variability...

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Unformatted text preview: Natural variability failing to explain the warming at end of the 20 th century Mathematical modeling on anthropogenic forcing: Increase of temperature 2 o C due to the doubling of CO 2 Significant global warming as a result of human activities Air pollution reduced incoming solar energy by 10%, which offset up to 50% of the expected warming Reductions in air pollution result in increase in temperature Anthropogenic Forcing http://upload.wikimedia.org/wikipedia/commons/c/c1/2000_Year_Temperature_Comparison.png Anthropogenic Forcing Figure19.16 Anthropogenic Forcing Doubling the greenhouse gases, then 1.54.5 o C (about 3 o C, or 2.67.8 o F, about 5.2 o F) increase in average global temperature Significant rise of sea level and melting of glacial ice due to the increase in temperature The number of retreating glaciers accelerating in many areas of the world Significant effects on global climate patterns Potential Effects of Global Climate Change Potential Effects of Global Climate Change...
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Lecture 22 - Climate Change part 3 - Natural variability...

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