I’m not sure why the article calls CO2 C02, did they just think zeros look better; it makes you wonder about the article. Are typos a known issue in searches?

I’m not sure why the article calls CO2 C02, did they just think zeros look better; it makes you wonder about the article. Are typos a known issue in searches? 1, I, or l, 0 and O https://en.wikipedia.org/wiki/Slashed_zero https://en.wikipedia.org/wiki/Slashed_zero