is covid-19 caused by increased carbon dioxide in the atmosphere in china and other places?
- conley39Lv 74 weeks ago
There is a theory that some environmental factor activated the virus, but it's just a theory and no one knows what the environmental factor would have been if true.
- sunshine_melLv 74 weeks ago
....no. It's definitely not caused by carbon dioxide.
- martinLv 74 weeks ago
No, it hasn't been linked to that in any news stories. It seems to have evolved from sloppy work, perhaps rubbish, outside a bio lab in China.