Climate Change

More documents

Recommendations

Info

Example of a Positive Feedback 1. Temperature goes up due to GHGs. 2. This means more sea ice and glaciers melt. 3. Ice is very reflective. 4. Therefore, less sunlight is reflected. 5. Therefore more sunlight is absorbed, causing a further incrase in temperature! 6. Positive feedback – the initial increase in temperature in (1) leads to events that cause an amplification of this temperature increase) • e.g. GHGs cause an increase in T by 2 K, but the melting ice scenario causes a further warming by 2 K, leading to an overall warming of 4 K. 30
Predicting <strong>Climate</strong> <strong>Change</strong> •The climate system exhibits countless feedback cycles, some positive and some negative. • The sum of all of these feedbacks determines what future temperatures will be. 31
Page 2 and 3: Climate Change June 29 th 2009 2
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: Example of a Negative Feedback 1. T
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
Page 71 and 72: Other Aerosol Types • Aerosols ar
Page 73 and 74: Predicted % Change of Precipitation
Page 75 and 76: Predicted % Change in Precip • We
Page 77 and 78: Change in Maximum and Minimum Daily
Page 79 and 80: Change in Maximum and Minimum Daily
Page 81 and 82:
Change in Phenomenon Higher max Tem
Page 83 and 84:
Sea Level Rise Projection • Note:
Page 85 and 86:
Sea Level Rise Projection 85
Page 87 and 88:
Sea Level Rise Projections • At t
Page 89 and 90:
People at Risk (by 2080) - Sea Leve
Page 91 and 92:
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
show all

Climate Change

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?