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co2fromcars [2012/01/25 09:08]
mike
co2fromcars [2012/01/25 09:21] (current)
mike
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-The atmosphere is currently at 387ppm <math>CO_2</math> 407ppm is considered unprecedented (+20ppm).  How much atmosphere is required to dilute this CO_2?+The atmosphere is currently at 387ppm <math>CO_2</math> 407ppm is considered unprecedented (+20ppm).  How much atmosphere is required to dilute this <math>CO_2</math>?
  
 <math> 1216.03 L \; CO_2 \times \frac{1,000,000L}{20L} </math> <math> 1216.03 L \; CO_2 \times \frac{1,000,000L}{20L} </math>
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 The atmosphere is 120km high, but realistically, the density drops off to zero out there, so we can half that to get a reasonable number for a "dense" atmosphere.  Assuming an atmosphere of uniform density and an altitude of 60km, what percentage of a square km is this? The atmosphere is 120km high, but realistically, the density drops off to zero out there, so we can half that to get a reasonable number for a "dense" atmosphere.  Assuming an atmosphere of uniform density and an altitude of 60km, what percentage of a square km is this?
  
-Volume of the atmosphere:+Volume of 1 square km of atmosphere:
  
 <math> 60km \: \times \: 1km\times \: 1km </math> <math> 60km \: \times \: 1km\times \: 1km </math>