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re: WH Science Adviser: Make CO2 Emissions 'Close to Zero

Posted on 12/29/14 at 10:49 pm to
Posted by udtiger
Over your left shoulder
Member since Nov 2006
99521 posts
Posted on 12/29/14 at 10:49 pm to
What is the "net" exchange between the air humans breath in and the CO2 that is exhaled? Are you seriously going to try to say it is a zero sum? Because it is not.

So, we then get to the nut. Is the CO2 "net" a constant, set prior to the Industrial Revolution (which is when the AGW causing CO2 started), or is it "flexible" so the disciples don't have to face the hard decision of directly exterminating billions of humans?
Posted by Iosh
Bureau of Interstellar Immigration
Member since Dec 2012
18941 posts
Posted on 12/30/14 at 12:07 pm to
quote:

What is the "net" exchange between the air humans breath in and the CO2 that is exhaled? Are you seriously going to try to say it is a zero sum? Because it is not.
It's zero-sum because humans eat food. Every C in CO2 comes from plants. By definition, if there are enough plants to feed humans (and animals), there are enough plants to recycle respiration. It's a closed cycle.
Posted by SpidermanTUba
my house
Member since May 2004
36129 posts
Posted on 12/30/14 at 1:42 pm to
quote:

What is the "net" exchange between the air humans breath in and the CO2 that is exhaled? Are you seriously going to try to say it is a zero sum? Because it is not.


Of course it is. Its called the carbon cycle you blubbering idiot.
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