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Past, Present, and Probable Future of Atmospheric Carbon Dioxide

Past, Present, and Probable Future of Atmospheric Carbon Dioxide. Dr. Robert MacKay. http://cs.clark.edu/~mac/CarbonCycle.ppt. Acknowledgement. Aslam Khalil, PSU Physics Clark College. Outline. Introduction/ Motivation Natural and Anthropogenic sources of change

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Past, Present, and Probable Future of Atmospheric Carbon Dioxide

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  1. Past, Present, and Probable Future of Atmospheric Carbon Dioxide Dr. Robert MacKay http://cs.clark.edu/~mac/CarbonCycle.ppt

  2. Acknowledgement • Aslam Khalil, PSU Physics • Clark College

  3. Outline Introduction/ Motivation Natural and Anthropogenic sources of change Recent temperature record Past CO2 Present CO2 A simple mathematical/conceptual model Future projections Future emissions Discussion

  4. Natural and Anthropogenic Climate Forcing

  5. No Atmosphere

  6. Today’s Atmosphere

  7. John Tyndall ~1867 “The aqueous vapour constitutes a local dam, by which the temperature at the earth's surface is deepened; the dam, however, finally overflows, and we give to space all that we receive from the sun.”

  8. John Tyndall ~1867 “Aqueous vapour is a blanket more necessary to the vegetable life of England than clothing is to man. Remove for a single summer-night the aqueous vapour from the air which overspreads this country, and you would assuredly destroy every plant capable of being destroyed by a freezing temperature. The warmth of our fields and gardens would pour itself unrequited into space, and the sun would rise upon an island held fast in the iron grip of frost.”

  9. Greenhouse Gases Water Vapor Carbon Dioxide Ozone Methane Nitrous Oxide Chlorofluorocarbons

  10. Cooling to offset warming

  11. http://data.giss.nasa.gov/gistemp/graphs/

  12. Carbon Dioxide in Prehistoric times

  13. Vostok Ice Core data

  14. http://cs.clark.edu/~mac/physlets/GlobalPollution/CO2assign.htmhttp://cs.clark.edu/~mac/physlets/GlobalPollution/CO2assign.htm

  15. http://cs.clark.edu/~mac/physlets/GlobalPollution/carbon_dioxide.htmhttp://cs.clark.edu/~mac/physlets/GlobalPollution/carbon_dioxide.htm

  16. http://cs.clark.edu/~mac/physlets/GlobalPollution/carbon_dioxide.htmhttp://cs.clark.edu/~mac/physlets/GlobalPollution/carbon_dioxide.htm

  17. http://www.newscientist.com/article/dn10507-carbon-emissions-rising-faster-than-ever.htmlhttp://www.newscientist.com/article/dn10507-carbon-emissions-rising-faster-than-ever.html

  18. US Carbon emissions through 2004 http://cdiac.ornl.gov/trends/emis/em_cont.htm

  19. China’s carbon emission through 2004 http://cdiac.ornl.gov/trends/emis/em_cont.htm

  20. Russia’s carbon emission through 2004 http://cdiac.ornl.gov/trends/emis/em_cont.htm

  21. India’s carbon emission through 2004 http://cdiac.ornl.gov/trends/emis/em_cont.htm

  22. Fossil Fuel Reserves ~40 yrs Oil ~80 yrs Natural gas ~200 years coal

  23. World Population http://www.physicstoday.org/vol-57/iss-7/p47.html

  24. Fossil Fuel ReservesOil http://www.physicstoday.org/vol-57/iss-7/p47.html

  25. http://www.eia.doe.gov/pub/oil_gas/petroleum/feature_articles/2004/worldoilsupply/oilsupply04.htmlhttp://www.eia.doe.gov/pub/oil_gas/petroleum/feature_articles/2004/worldoilsupply/oilsupply04.html

  26. Fossil Fuel ReservesNatural Gas http://www.physicstoday.org/vol-57/iss-7/p47.html

  27. Fossil Fuel Reservescoal http://www.physicstoday.org/vol-57/iss-7/p47.html

  28. http://chooseclimate.org/jcm/index.html

  29. http://chooseclimate.org/jcm/index.html

  30. http://cs.clark.edu/~mac/CarbonCycle.ppt

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