I'm not talking about trees growing you dimwit. I'm talking about filtering the air. Though given it's winter I don't think they are filtering the air anyway come to think of it... But nature as a whole does have ways to filter out CO2 it's just that we are polluting at a faster rate than it can keep up with which is why we are at a climate crissis. But MAYBE with the reduction in pollution right now it might actually be enough for nature to catch up. Not saying it is though, it probably isn't. but it's an interesting thought experiment. They are already seeing a huge reduction of pollution in China right now it's like night and day.
The air above China cleaned up faster than ever before in living memory.
www.livescience.com
My grandparents have been out of the country since before this event even started. They came back because of this event. So technically they did follow "my" advice. BTW that advice comes from the government:
https://www.canada.ca/en/public-hea...us-infection/latest-travel-health-advice.html
I know some people don't always trust the government but when it comes to stuff like this, normally you should follow what they say.