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Global Climate Change

Global Climate Change. Climate Change Exhibit at AMNH. Our Atmosphere. Nitrogen 78.094% Oxygen 20.946% Argon 0.934% Carbon Dioxide 0.038% Avg Water Vapor >1% Other 0.002%. Outline: Global Climate Change. Weather and Climate Historical Perspective

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Global Climate Change

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  1. Global Climate Change Climate Change Exhibit at AMNH

  2. Our Atmosphere Nitrogen 78.094% Oxygen 20.946% Argon 0.934% Carbon Dioxide 0.038% Avg Water Vapor >1% Other 0.002%

  3. Outline: Global Climate Change • Weather and Climate • Historical Perspective • The Greenhouse Effect and the Greenhouse Gases • Driving Forces of Climate Change • Effects of Climate Change • Temperature Estimates • Mitigation

  4. Weather and Climate

  5. Earth’s balanced budget

  6. Weather Generation

  7. U.S. Climate http://www.nasa.gov/centers/goddard/mpg/169068main_temp_anom_w_date_320x240.mpg

  8. North American Weather http://www.myfoxaustin.com/myfox/pages/Weather;jsessionid=B284C4931E6B74681A850D0FBC3739D2?pageId=9.1

  9. Historical Perspective

  10. Historical Climate ChangeMass Extinctions Clues from Austin’s Geology http://www.utexas.edu/tmm The Texas Memorial Museum/

  11. Cretaceous – Tertiary K/T Extinction Marine Regression Extraterrestrial Impact Volcanism

  12. K/T EXTINCTION

  13. Chixalub Crater

  14. Geologic Time Scaleand Extinctions

  15. Climate Data

  16. Historical Climate ChangeIce Cores

  17. Ice Core

  18. Tree RingsDendocronology

  19. Annual Average Global Surface Temperature Anomalies 1880-2016

  20. Historical Records 1000 years to present

  21. Climatic records from 1880

  22. The GreenHouse Effect The GreenHouse Gases

  23. The Greenhouse Effect

  24. The Greenhouse Effect

  25. The Greenhouse Effect

  26. The Greenhouse Gases (Halocarbons)

  27. Greenhouse Gases

  28. Water Vapor

  29. Greenhouse Gas Sources

  30. CO2-Carbon Dioxide Fossil Fuel Coal Gas Forest Burning Cement Manufacture Removal of Forest reduces carbon sink

  31. Global Fossil Fuel Emmissions

  32. CO2-Carbon Dioxide

  33. CO2-Carbon Dioxide

  34. CH4 - Methane

  35. CH4 - Methane http://www.methanetomarkets.org/partners/country/usa.htm

  36. Methane Hydrate

  37. NO2

  38. NO2

  39. Ozone • In the stratosphere, ozone forms the ozone shield. • In the troposphere, ozone is a greenhouse gas

  40. Ozone

  41. Smog New York, New York

  42. The hole in the Ozone

  43. Halocarbons (Chloroflourocarbons) Styrofoam

  44. Greenhouse Gas Sources

  45. http://cdiac.ornl.gov/pns/current_ghg.html Greenhouse Gas Concentrations

  46. Climate Drivers***Sources of Climate Change***or What causes global warming?

  47. Climate Drivers • Milankovich Cycles • Ocean Convection • Solar Variability • Volcanic Emissions and Global Dimming • Anthropogenic Sources

  48. Milankovitch Cycles • http://www.youtube.com/watch?v=wLAYRdSnRSI

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