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Hard facts on atmospheric CO 2 concentration, and

Hard facts on atmospheric CO 2 concentration, and. a sure way to stabilise it???. 11 Jan 2008 R. Shanthini. Global CO 2 emissions from the burning of fossil fuels & the manufacture of cement.

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Hard facts on atmospheric CO 2 concentration, and

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  1. Hard facts on atmospheric CO2 concentration, and a sure way to stabilise it??? 11 Jan 2008 R. Shanthini

  2. Global CO2 emissions from the burning of fossil fuels & the manufacture of cement (Unit: 109 kg) Source: http://cdiac.ornl.gov/trends/trends.htm 11 Jan 2008 R. Shanthini

  3. Global CO2 emissions from the burning of fossil fuels & the manufacture of cement (Unit: 109 kg) Source: http://cdiac.ornl.gov/trends/trends.htm 11 Jan 2008 R. Shanthini

  4. CO2 concentration in the atmosphere 383.7 (Unit: ppmv) Source: http://cdiac.ornl.gov/trends/trends.htm 11 Jan 2008 R. Shanthini

  5. Global temperature (land meteorological stations) http://cdiac.ornl.gov/trends/temp/hansen/graphics/gl_land.gif 11 Jan 2008 R. Shanthini

  6. Global temperature (land + ocean) http://cdiac.ornl.gov/trends/temp/hansen/graphics/gl_land_ocean.gif 11 Jan 2008 R. Shanthini

  7. Global temperature (North and South) http://cdiac.ornl.gov/trends/temp/hansen/graphics/nhsh.gif 11 Jan 2008 R. Shanthini

  8. Global temperature has risen by more than 0.6oC during the last 100 years. Global temperature has not varied by more than 1 or 2oC during the past 10,000 years. Global Warming has begun, and so has the Climate Change. 11 Jan 2008 R. Shanthini

  9. Consequences………… • 75% of the ice on Kilimanjaro • has been lost since 1912, and • all ice could vanish soon. 11 Jan 2008 R. Shanthini

  10. 11 Jan 2008 R. Shanthini

  11. Consequences………… 11 Jan 2008 R. Shanthini

  12. Consequences………… • death of coral reefs • fewer cubs for polar bears • spread of dengue and other diseases • heavy rains & severe draughts • fires, floods, storms, & hurricanes • changed rainfall patterns • warming and aridity • loss of biodiversity 11 Jan 2008 R. Shanthini

  13. Rate of increase of CO2 concentration (Unit: ppmv/year) Source: http://cdiac.ornl.gov/trends/trends.htm 11 Jan 2008 R. Shanthini

  14. CO2 concentration in the future (ppmv) global temperature may be up by 2oC 11 Jan 2008 R. Shanthini

  15. At the rate of 1.5 ppmv of CO2 increase per year, 400 ppmv CO2 will be reached in 2018, and it is probable that the global temperature would go up by 2oC (compare it with the 0.01oC per decade estimate by WWF). -Accelerated Climate Change -Mass extinctions -Ecosystems breakdowns -Large scale discontinuities 11 Jan 2008 R. Shanthini

  16. Some say, forget about the 2oC. The limit is not 400 ppmv CO2. It is550 ppmv CO2(which is nearly twice the pre-industrial value), which we may reach not. 11 Jan 2008 R. Shanthini

  17. CO2 concentration in the future (ppmv) We are lucky. Are we? 11 Jan 2008 R. Shanthini

  18. How to stop further global warming, climate change, and the terrible consequences of increased CO2 concentrations in the atmosphere? 11 Jan 2008 R. Shanthini

  19. Option 1: Increase the use of carbon sinks (such as forests where 70% of all photosynthesis occurs). But, we replace our forests with cities, highways & golf courses. Stop destroying forests, and grow more trees. 11 Jan 2008 R. Shanthini

  20. The forest cover is already too small to help reducing global warming. How long does it take to grow a tree like this? 11 Jan 2008 R. Shanthini

  21. Option 2: Change to non-CO2 emitting energy sources What are they? Nuclear Hydro Renewables (Geothermal, Solar, Wave, Tidal, Wind, Biomass and Biogas) Muscle Power 11 Jan 2008 R. Shanthini

  22. Energy from sustainably managed renewable sources Ulf Bossel – October 2005 11 Jan 2008 R. Shanthini

  23. Global Energy Consumption by Fuel (in 1015 BTU) http://www.eia.doe.gov/pub/international/iealf/table18.xls 11 Jan 2008 R. Shanthini

  24. Global Energy Consumption by Fuel (in %) http://www.eia.doe.gov/pub/international/iealf/table18.xls 11 Jan 2008 R. Shanthini

  25. Global Energy Consumption by Fuel (in %) enlarge http://www.eia.doe.gov/pub/international/iealf/table18.xls 11 Jan 2008 R. Shanthini

  26. Global Energy Consumption by Fuel (in %) http://www.eia.doe.gov/pub/international/iealf/table18.xls 11 Jan 2008 R. Shanthini

  27. There is no immediate financial benefits for a switch to renewable energy in the profit-oriented energy markets. 11 Jan 2008 R. Shanthini

  28. Option 3: Reduce Population More people More pollution 11 Jan 2008 R. Shanthini

  29. in 2004 If you are in USA, you will be lighting 15 bulbs, each with 100 W power If you are in China, you will be lighting 2 bulbs, each with 100 W power 11 Jan 2008 R. Shanthini

  30. in 2003 11 Jan 2008 R. Shanthini

  31. Should not we rethink about economic growth (increasing GDP per capita), at any cost? 11 Jan 2008 R. Shanthini

  32. The supreme Greek God Zeus told Prometheus: “You may give men such gifts as are suitable, but you must not give them fire for that belongs to the Immortals.” – Roger Lancelyn Green Tales of the Greek Heroes Puffin Classics 11 Jan 2008 R. Shanthini

  33. Option 4 to stabilise atmospheric CO2 concentration? Think about it and come up with ideas. By the way, it would make a very good project for the sustainable development course. 11 Jan 2008 R. Shanthini

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