See what happens carbon emissions 35 45 55 65 75 85

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See what happens.
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Carbon Emissions 1905 15 25 35 45 55 65 75 85 95 7 6 5 4 3 2 1 CO 2 Emissions (billion tonnes per year) } } Developed World (US, Canada, Western Europe) Rest of World Year
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Recent Correlation 1860 80 1900 20 40 60 80 2000 Year 385 365 345 325 305 285 265 CO 2 Concentration (ppm) 14.7 14.5 14.3 14.1 13.9 13.7 13.5 Average Global Temperature ( o C) Temp CO 2
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Conclusion Hypothesis Independent Dependent 1 Temp CO 2 2 CO 2 Temp
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Conclusion Hypothesis Independent Dependent 1 Temp CO 2 2 CO 2 Temp This is the Greenhouse Effect
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Recent Warming Trends
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Recent Warming Trends
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Princeton Model 14.8 14.6 14.4 14.2 14.0 13.8 13.6 13.4 13.2 Average Global Temperature ( o C) 1860 80 1900 20 40 60 80 2000 Year Model Data Model Includes: • CO 2 Aerosols Solar Radiation
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Date Temperature “Hockey Stick”
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Agreement of Satellite and Surface Measurements
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Agreement of Satellite and Surface Measurements Slope = ~0.15 o C/decade
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Global Warming Conclusion The evidence that human activities are causing climate change is as certain as science gets in almost any area. Bette Hileman C&E News October 20, 2003
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Potential Positive Effects
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Canada Potential Positive Effects
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Potential Positive Effects CO 2 Plant Fertilization
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Potential Positive Effects CO 2 Plant Fertilization
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Potential Negative Effects Rapid extinctions Warmer seas could render some turtle species entirely female.
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