#Informeren har i et stykke tid skrevet “CO₂” i stedet for “CO2” — det er der mange nyheds­medier (og andre) der kan lære noget af.
Magnetic Ink

@kas I don't really think there is a difference.. Am I wrong?
@DimitriMeow

Yes.

The correct chemical notation is “CO₂”. “CO2” is lazyness, ignorance, or lack of a proper font.
@kas Well, I guess that is true for a news publisher. I prefer the CO2 variant personally, because it would look fine on older terminals =DD
@DimitriMeow Do you regularly use terminal emulators that cannot handle UTF-8?
@kas sadly yes, I think Windows still has issues with it xD