We would have to shut down 90% of the pollutants world wide to do anything. Will make the Covid shutdowns look like a long weekend. And even then it might not make a difference if climate change is out of our control. You willing to do that?
This is vastly overestimated and straight up poorly informed statistics. There are dozens of solutions for pollution that involve energy efficiency, which doesn't require a single shut down and merely uses what we're already consuming more efficiently (think gasoline standards, heating, A/C, LEDs, insulation, weatherization, etc).
Alongside these simple and job-intensive efficiency gains, we can encourage the already massive growth in wind, solar, batteries, EVs, and other clean industries, which will vastly reduce the number of pollutants without shutdowns needed.
If we apply smart stimulus for Corona to encourage the many green tech jobs, we will see huge benefits on air pollution alone, never mind long-term climate impacts. Even if you think climate is a hoax, pollution certainly isn't and it's killing poor people by the hundreds of thousands every year. We have the solutions above, let's implement them, not throw up our hands in despair.
However even doing these things won’t return the biosphere to it’s previous condition, we’ve extracted extreme quantities of energy from underground and dumped them into the atmosphere, and our ‘locked in’ climate change will not decrease with those measures alone. We need to restore balance and I can’t see a way of doing it short of significant carbon sequestration - vastly beyond what can be achieved by reforestation.
I don’t want to be uncharitable, but I can’t help reading your comment as, “we shouldn’t be inconvenienced to prevent ours and our children’s suffering.” That can’t be a correct reading, can it?
[1] https://watson.brown.edu/costsofwar/files/cow/imce/papers/20...