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Approximately how many parts per million of the atomsphere were CO2 in the mid 1950s.
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320
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Approximately how many parts per million of the atomsphere were CO2 in the late 1990s.
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350
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How do atomspheres and climates of venus and mars compare with the Earths
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1. Mars' atmosphere is 100x thinner than Earth's
2. Mars' surface temperature is -50 degrees celcius
3. Venus's atmosphere is desner and has 96% CO2
4. Venus' average surface temp is 460 degrees celcius.
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Why is porblmatic to attribute global warming to "natural causes"
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It doesn't explain anything. It seems lacking in content. More CO2, the hotter the atmosphere.
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Which has greater warming potential-methane, CO2 or CFC-12?
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CFC-12
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What is the main complication is evaluating the effect of cloud coverage on climate patterns
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Clouds reflect solar radiation back into space and absorb infrared radiation and clouds have both a warming and cooling affect so you dont know what balance there will be
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By what percentage has the atomosphere CO2 levels increased since 1750
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31%
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What are two most significant ways in which human acitivity produces CO2 emissions
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Fossil fuels and land use
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What is the biggest health concern associated with global warming
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Access to fresh water
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What increase in average global temperatures are predicted by 2007 IPPC report for the next century
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The temperatures will rise between 1.1 degrees celcius and 6.4 degrees celcius.
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Three countries did not enter the Kyoto Protocol which ones?
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US, China, India
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Why were many countries excused from the Kyoto Protocol
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You can't improve quality of life if their restraints on greehouse gas emissions. Economic growth is stunted.
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Describe the main differences between the predictions of the 1970s that the world was getting cooler abd current predictions that things are getting warmer
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· A small number of climate scientists made this claim = there are thousands of climate scientists now
· Science was very different then
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What two important inequalities that arise within the ethical discussions of climate change
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· We are responsible for the environment but were are not responsible/good inhabitants
· Subsequent generations will inherent problems even though they did not create them
· International inequalityàcountries who suffer the most of climate change although they are least responsible such as developing countries
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How is manufacturing controversy a helpful strategy for those who dont like some particular conclusion
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It inflates the level of public uncertainty surrounding an otherwise well-established scientific opinion
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