Quote:
Originally Posted by RedDevil
We've doubled the CO2 content in the atmosphere over the last 150 years.
So we doubled the amount of heat that gets reflected back to the earth, hence the raising global average temperature, hence the melting ice and raising seas.
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No, doubling atmospheric carbon dioxide =/= doubling the amount of heat trapped by the atmosphere. Carbon dioxide is only one of many heat-absorbing gases, and we would have to double the concentration of all of them to double the heat-absorbing capacity of the atmosphere as a whole.