The very first thing to do, is to not take money from people on developed countries to give to India. A wealth transfer should only go to developing countries that are improving their environmental impact, never to countries like India that are constantly doing worst.
Then, to look at CO2 emissions per land area. Which should be the fairest way of measuring the countries that are actually doing good, instead of rewarding high birthrates that only make the environmental problem worst.
By the justice of keeping the planet from going above what its natural resources can replenish. Which, is actually the all excuse being given to take money from some people to give to other: saving the planet.
Also, they didn't will the number of relatives they have, and yet, here you are arguing that they should be entitled to the same material wealth as an individual that has a lot less of those than them.
I could even be pressed to give part of my material wealth (and of my 1.53 children) if the others were actually improving their carbon footprint, but at this point I'm just being extorted of my money to give them so that they can emit even more CO2. It's maddening, and it has absolutely nothing to do with saving the planet.
Then, to look at CO2 emissions per land area. Which should be the fairest way of measuring the countries that are actually doing good, instead of rewarding high birthrates that only make the environmental problem worst.