Climate Change

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<strong>Climate</strong> <strong>Change</strong> June 29 th 2009 2
Lifetime of GHGs – CH 4 • Residence time of the “stuff in the box” that is our atmosphere. • CH 4 – How long would it last? – It would last about 8-12 years in the atmosphere • That means that the CH 4 we are emitting now will leave the atmosphere after about 10 years. So if we stop emitting CH 4 now the increase should slow down ten years from now. 3
Page 4 and 5: Lifetime of GHGs • Other GHGs hav
Page 6 and 7: Global Warming Potential • EX: Ho
Page 8 and 9: Aerosol Types and Composition • S
Page 10: Direct Effect in Action • Particl
Page 14: Dust Storms 14
Page 17 and 18: Industrial Pollution 17
Page 19 and 20: Ship tracks19 19
Page 21 and 22: Indirect Effect in Action • The w
Page 23 and 24: Long wave (IR) emissions seen by sa
Page 25 and 26: Radiative Forcings • This is one
Page 27 and 28: Global Climate Change Debate • Fo
Page 29 and 30: Example of a Negative Feedback 1. T
Page 31 and 32: Predicting Climate Change •The cl
Page 33 and 34: Past and Present Climate Change •
Page 35 and 36: Atmospheric CO 2 and Temp • Curre
Page 37 and 38: Historical CO 2 Concentrations You
Page 39 and 40: Historical Methane (CH 4 ) Concentr
Page 41 and 42: Earth’s Surface Temperature 0.2 C
Page 43 and 44: Earth’s Surface Temperature You
Page 45 and 46: Global Annual Temperature Trends (1
Page 47 and 48: Global Precipitation Trend Green do
Page 49 and 50: Changes of Note: • Sub-Sahara Afr
Page 51 and 52: Global Precipitation Trend • Inte
Page 53 and 54:
Projection of Future Climate 53
Page 55 and 56:
Future CO 2 Emission Scenarios •
Page 57 and 58:
Future CO2 Concentrations - Predici
Page 59 and 60:
Temperature Change Predictions 59
Page 61 and 62:
Temperature Change Predicitions •
Page 63 and 64:
Radiative Forcing by well mixed GHG
Page 65 and 66:
Radiative Forcing by Sulfate 65
Page 67 and 68:
Radiative Forcing by Sulfate • Th
Page 69 and 70:
Other Aerosol Types • It’s no l
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Other Aerosol Types • Aerosols ar
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Predicted % Change of Precipitation
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Predicted % Change in Precip • We
Page 77 and 78:
Change in Maximum and Minimum Daily
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Change in Maximum and Minimum Daily
Page 81 and 82:
Change in Phenomenon Higher max Tem
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Sea Level Rise Projection • Note:
Page 85 and 86:
Sea Level Rise Projection 85
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Sea Level Rise Projections • At t
Page 89 and 90:
People at Risk (by 2080) - Sea Leve
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People at Risk (by 2080) - Sea Leve
Page 93 and 94:
Projected Changes in Runoff by 2050
Page 95 and 96:
Crop Yield Change • Percentage ch
Page 97:
Impacts on Human Health • Benefic
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Climate Change

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