Ah, we are going there. Ok. First of all, look at your government, your elections and tell me people will vote for sacrificing their comforts to preserve ecology under any democratic system…

Second of all, the global GDP per capita is $12.688. That is yearly. So after you redistribute the world wealth equally, you get $1057 before tax, capital investment and capital amortization monthly. The issue isn’t really the economic system, it is that there isn’t enough resources for 8 billion people to live comfortably.