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19 Cards in this Set
- Front
- Back
What is Stratospheric Ozone
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Good ozone, protects from UV
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What depletes stratospheric ozone?
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CFCs, methyl bromide, nitrous oxide
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What is Tropospheric ozone? and what causes it
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Bad ozone
Urban polution, from interaction of hydrocarbons, oxides of nitrogen and sunlight(smog)-cars |
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What causes Global Warming
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greenhouse gasses: Carbon dioxide, methane, nitrous oxide, CFCs
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Where does CO2 come from?
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Fossil Fuel combustion from internal combustion engine, power plants
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Where does methane come from?
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Rice paddies, ruminants, landfills, leakage from natural gas pipelines
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Where does Nitrous Oxide come from?
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fertilizer decomposition in soil
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What are they main gases in the Atmosphere and what are their percentages
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Nitrogen- 78%
Oxygen- 21% Argon- 1% |
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What are the trace gases in the atmosphere and how many ppm? (hint- the same ones that cause global warming)
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Carbon dioxide- 350ppm
methane- 1.7 ppm nitrous oxide- .3 ppm |
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What organisms do 50% of global photosynthesis
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marine photoplankton
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What is the Biological Pump?
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it removes CO2 from the atmosphere to deep ocean
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The addition of Iron to High Nutrient Low Chlorophyll regions might stimulate what?
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The biological pump, therefore climate change
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What are some problems with Fe fertilization to curb global warming?
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Although there was more CO2 uptake, there was no eveidence that more fixed C descended into deep ocean. Also FE could cause more production of nitrous oxide.
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What kind of Climate Change is caused by global warming?
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Slower thermohaline circulation causes colder Europe
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What kind of severe weather is caused by global warming?
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droughts, excessive rainfall, more hurricanes, more temp difference btw poles and equator
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What are some effects of the sea-level rise caused by global warming?
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Coastal flooding
submersion of islands |
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In 1998, what were the CO2 emissions per capita in US, Europe, Asia?
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US- 5.4 tons/person/yr
Eu- 1.9 t/p/y Asia- .3 t/p/y |
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What level do we need to maintain in the world of CO2 emissions to level out CO2 at 400ppm?
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.4 tons/person/year
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What will happen if CO2 stabilizes at 550ppm?
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Global avg temperature will go up 5.5 degrees C
Sea level go up 6m |