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This thread seems to be confusing climate change / carbon (dioxide) with local pollution.

climate change / carbon (dioxide) and carbon taxes are about long-term temperature change due to C02 concentration and the effects of that. COVID-19 isn't changing that in 1 year.

Local pollution is caused by burning gasoline and factory smoke.

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I was talking both. They're related - local pollution does local damage to the environment; climate change is bad because it does damage to the environment everywhere simultaneously.

I don't expect COVID-19 to show up too strongly in temperature graphs, but I hope some of its effects show up somewhere with large enough effect size that we have a statistically significant dip in the chart to point to as direct evidence that human activity is causing this, and changes are meaningful to fixing it.

Why does global warming damage the environment everywhere?

because environments everywhere have adapted to a rhythm of temperature that will no longer exist due to global warming. a good definition of damage is "harmful change."

Yes, but Cars are the intersection of the two. That's a big intersection.

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