Global issues

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Author:
lacythecoolest
ID:
274069
Filename:
Global issues
Updated:
2014-05-11 18:13:26
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global
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Description:
EE&C final
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  1. what takes out the most CO2 from the atmosphere
    photosynthesis
  2. what releases the most CO2 back into the atmosphere
    burning of fossil fuels
  3. 4 ways CO2 is emitted
    • fossil fuels
    • liquid-fuel consumption
    • solid-fuel consumption
    • gas-fuel consumption
  4. 7 energy sources
    • biomass(wood)
    • COal
    • Oil
    • natural gas
    • nuclear
    • hydroelectric
    • other
  5. emission differences btwn coal and nat gas
    • 90x more SO2
    • 5x more NO
    • 2x more CO2
  6. 4 CO2 culprits
    • power plants=
    • factories, home heating systems
    • >cars & trucks
    • >major transportation
  7. percent increase of CO2 in atmosphere since industrial revolution
    43%
  8. whats used to date the concentration of CO2 in the past?
    • ice cores
    • trapped gas bubbles extracted and measured
  9. 4 places CO2 is monitored
    • Mauna Loa
    • South POle
    • Barrow
    • Samoa
  10. what percent of greenhouse emissions is US responsible for?
    1/4
  11. 2 problems of increased CO2 in atmosphere
    • increased temperature
    • Acidification of ocean
  12. how much has the oceans pH levels dropped
    .1
  13. what waves does CO2 absorb
    infrared radiation(long)
  14. what wavelengths does the sun emit?
    earth?
    • sun, short, visible light
    • earth, long, infrared
  15. this passes through atmosphere and is absorbed by earths surface
    solar radiation
  16. this is radiated by earth and absorbed by CO2 in atmosphere, leads to increase in temperature
    infrared
  17. 3 positive feedback effects of warmer temps
    • increased moisture->H2O vapor holds IR
    • melting of snow & ice->reduce earths reflectivity
    • melt permafrost in tundra->methane released
  18. what acts as a carbon sink
    ocean
  19. what does increased atmospheric CO2 stimulate?
    • plant production
    • more CO2 fixed by plants with CaCo3 into ocean sediments
  20. melting of snow and ice/permafrost results in decrease of reflectivity and increase of sea level/water vapors
    arctic ramlification
  21. 2 factors moderating CO2 increase from fossil fuel burning
    • OCean
    • Plant production
  22. how much has oceans and plants help decrease the CO2 ppm to?
    • 85 ppm
    • 30% less
  23. 6 greenhouse gases
    • CO2
    • H2O
    • CH4
    • N2O
    • O3
    • CFC
  24. what gas is produced by grazing livestock, rice paddies, mining and permafrost
    methane
  25. percentage of methane increase due to humans
    2/3s
  26. how many more times effective at warming atmosphere is
    methane
    Nitrous Oxide
    Ozone
    CFC's
    than CO2
    • 25x
    • 230x
    • 20x
    • 10,000x
  27. lifetimes of methane
    nitrous oxide
    ozone
    cfc's
    carbon dioxide
    • M-7-10 years
    • NO-150-200 years
    • O3-hours to days
    • CFC-100-400 years
    • CO-50-200 years
  28. how many ppb of CO2 was released globally last year
    • china 10
    • USA 6
  29. whats horrific on air pollution
    rapid industrialization
  30. highest 3 countries of per capita carbon emissions (tons per person based on lifestyle)
    • Australia
    • US
    • Canada
  31. average global temperature increase from 1880
    .4-1.0 degrees Celius
  32. 2 effects of global warming
    • rise in sea level
    • changing climate
  33. 2 reasons for rise in sea levels
    • melting land glaciers and ice caps
    • thermal expansion of oceans
  34. 5 things increased temp->changed rainfall patterns will change
    • biomes & species distributions
    • agriculture
    • tropical diseases
    • storms
    • ocean conveyor belt
  35. how much of the polar ice cap will be melted in the next 100 years
    1/2
  36. how much has the sea level risen already and what will it rise to by the end of the century
    • .2m
    • 2m
  37. term to describe no more maple syrup
    economical social interactions
  38. small examples of extinction because of climate change
    snowshoe hares change coat colors with photoperiods-physiological change
  39. great lakes stats:
    • temp increase
    • evaporation increase
    • water level lower
    • winter: more open water=more intense snow storms
  40. diseases and climate change
    • if it gets warmer here tropical insects that carry diseases could come up and spread
    • malaria
  41. what would make storms more intense/
    warmer & moisture atmosphere
  42. number of most intense hurricanes predicted to increase by
    50% for each 1 degree celcius
  43. explain the conveyor belt
    • water won't lose heat, won't sink, stops whole thing
    • Europe freezes
  44. 8 major climate risks
    • coastal flooding
    • inland flooding
    • extreme weather
    • extreme heat
    • food insecurity
    • water shortages
    • marine ecosystem loss
    • inland ecosystems
  45. End conclusion of what will happen if we increase our current rate of destruction
    • Economic loss
    • health impacts
    • social disruption
  46. 2 solutions to climate change problem
    • mitigation
    • adaptation
  47. 2 ways to mitigate
    • reduce global emissions
    • geoengineering(carbon capturing)
  48. 2 ways to adapt to global warming
    • infrastructure projects to protect
    • design, urban plan, wetlands development
  49. 3 alternative strategies for geoengineering
    • ocean fertilization w/iron
    • shoot sulfur into upper atmosphere
    • carbon capture and storage
  50. how would ocean fertilization w/iron help?
    • stimulate algal growth
    • convert CO2 to organic matter and sink to bottom
  51. how would sulfur particles help
    reflect sunlight

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