All countries are weak to say any have real power is an illusion at this moment in this.
We are on a world that when spilt up has:
1/3 of 1 acre of fresh water per person.
4 acres of land per person.
12 acres of ocean per person.
If any country had real power they could fix the issue above. I say all are weak and suffer delusions of grandeur while the world literally is fucking itself to death.
You cited indicators that say only one thing - mankind is breeding mindlessly, and mindlessly destroying nature and resources. At the same time, whether we like it or not, the biggest population growth comes from poor countries (or rather, the poor population of countries). I do not think that this problem should and can be solved by the countries of the developed world. Why not? Because I don't know from hearsay how the world's aid has been "used" to help poor countries for decades.
Instead of local people demanding to build them factories, they demand "just feed and house us, we don't want to work". When they are told they need health care, hygiene, and birth control, they scream "stay out of our lives, our traditions, and our faith". At the same time, a huge number of "humanitarian organizations" and local authorities of countries "in need of help" are just corrupt feeding troughs for tens and hundreds of thousands of thieves of OUR money, which supposedly goes to "help poor countries"