Earlier quoted context omitted.
There's a pretty simple, viable solution. Carbon taxes. Yes, it's hard to get 195 countries to agree to implement a carbon tax, but you could have said the same thing about the ozone layer / CFC problem.
The problem with carbon taxes is that they are regressive. Carbon taxation plays out as a consumption tax on goods people consume in roughly the same quantities independent of income. Take fuel as an example. The average american adult consumes about 550 gallons of gas a year for driving. It doesn't matter substantially how wealthy you are - there are only so many hours in the day to drive. A $20/Metric Ton CO2eq car…
A hidden assumption in your calculation is that poor people emit the same amount of CO2 as rich people. Poor people may not have a car, and may not take a plane to go on vacation. They are also likely to live in a smaller apartment, reducing the heating/AC costs. This is probably more true if you view this on a global level.
Even if CO2 taxes are regressive, you could think of a way to compensate for this by altering tax rates/brackets