"At our gas-physics Weights and Measures facility in California,...

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    "At our gas-physics Weights and Measures facility in California, we tested carbon dioxide. It cools about the same as dry air: 20 degrees in less than 4 minutes."

    What absolute rubbish. This person absolutely did not do this experiment, and any primary school child can prove this statement wrong by using basic tools available in the kitchen.

    1) Take two empty jars which are the same size.

    2) Fill one of them with dry air by screwing the lid on.

    3) Get some vinegar and bicarb. Mix it in a bowl. It will start bubbling off CO2. Hold the second jar upside down above the bubbling to collect some CO2 into the jar. The CO2 is bubbling up, so it will force the normal dry air out of the jar and end up with a higher CO2 concentration than the first jar.

    4) Screw the lid on the second jar.

    5) Put both jars out in the sun for an hour or so.

    6) Bring both jars inside.

    7) Test how fast they are cooling by putting your hands on them to see which is warmer.

    The CO2 jar will cool down slower - even if you were inefficient at catching CO2 from the bowl with it - that's how effective CO2 is at storing heat.

    CO2 cools slower than dry air. It was proved by scientists well over a century ago. That fact isn't even slightly controversial.
    Last edited by Dochico: 09/08/24
 
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