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Cognitive dissonance is a powerful thing. Particularly when you...

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mjp2

10,520 Posts.

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24/02/18

09:41

Post #: 31309678
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Originally posted by tristanc ↑

“CO is lighter than air and CO2 is heavier than air.”

True - but pretty much irrelevant. The real reason for the much sharper gradient in CO concentrations is that CO simply doesn’t last that long in the atmosphere. It reacts with atmospheric oxygen to make CO2, and is gone within a few months.

To address your main point, though: who ever said that “well-mixed” has to mean “perfectly homogeneous”? If you actually look at the numbers on the CO2 concentration maps, you’ll see that the variation amounts to roughly +/-5%. That seems pretty well-mixed to me. And if you look at one of the many animated maps available, you’ll see that much of it does indeed originate from population centres - but there’s this thing called “wind” that continually blows it away.

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Cognitive dissonance is a powerful thing. Particularly when you have parties deliberately feeding it. And ignorance.
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