Mmmmm! I can think of a few reasons why much of that will turn out to be absurd.
Thinking of some African nations, some areas of India etc.
But also the modelling itself... we already know that no 2 countries are measuring CV the same way, so ALL models offering a comparison are, of necessity, flawed.
And a squillion and one other reasons.
This shit is bad enough as it is without adding more doomsday predictions to the mix