CO2 Layer

Predneer

A CO2 layer would be most illuminating, and is recommended.

idefix37

I think you would be disappointed by a CO2 layer, because the content is quite uniform.

Much more interesting in a near future, it will not be to have the concentration of CO2 but the fluxes of this gas (sources and sinks) as explained here:
https://atmosphere.copernicus.eu/new-high-quality-cams-maps-carbon-dioxide-surface-fluxes-obtained-satellite-observations