That might seem like a lot but based on US average consumption based emissions (production based emissions taxation is for chumps) that's $850 annually by the late 2020s. Of course, all or most of that can be returned to people through other tax reductions. I can't be the only one who looks at that number and thinks, "Is that fucking it? Jesus, just do it then."
Don't listen to the doomsayers that just talk and don't propose any practical solutions.
At least there are those who are developing the tools, technologies and policies that will slow it down or make a significant impact in stopping it.
Not changing behaviors and just hoping for magical, unproven technology is plain stupid in my view. We are going to need that investment in technology, but it‘s not the magic solution. Many ecosystems aren’t even fully understood, so we can’t really tell what will result of their imminent collapse.