The Earth is a giant ball divided by halves at the equator. The "top" half is the northern hemisphere which is the most heavily populated and most industrially active part of the planet. Europe, North America, India and China are all northern hemisphere countries.
Which helps explain the significance when southern hemisphere CO2 levels break the 400 ppm mark. That happened last week at Australia's Cape Grim monitoring station in the state of Tasmania.
There is no correalation between the cocentration of gas in a bottle and thermal properties. That would be relying on science. Has anyone actually ever seen a part per million?
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