But, but, they missed the real problem: overpopulation. We have exceeded the viable world population in many areas. Reduction in the birth rate or decrease in the survival rate will be required for a sustainable population long term. China one child policy works. It will need to be a world one child policy or a one couple one child. This would lead to wider diversity in the gene pool. If you want a second child, you meed to find a second mate. Less inheritance, more diversity. Oh, well.
What is the evidence for overpopulation? Look at the big cities in the west, or anywhere in the east. We need to modify agriculture to feed the people, and then we are eating survival foods, not proper human foods. Water, look at California, the interior plains, and the contamination of the planet, global warming, etc. We can extend the earth capacity a bit, but how much and for how long? A years famine will wake the world up.
In the sixties, overpopulation was a concern, as was food supply. We only have a "few days" of fresh supply ahead, but oh well, we have a year of survival foods. Water may be a bigger issue, as we are depleting the fresh aquifers in many areas. Fossil fuels to end by 2100. Ya sure, not likely. These will become more expensive, as the supply gets short, unless someone is desperate for money or has a political agenda. But then what do I know? It will not be the issue in my lifetime, for I am past my best by date.
No government but China has taken on this problem. The pope is yodeling about fossil fuel, but is resistant to population growth control. Islam thinks it is there right to reproduce like rabbits or rats, but they also have the right to starve. Oh well. Shit happens. It would be political suicide to suggest that we do something about the problem.
Religions in general depend on ignorance of how to live, what is good and evil, and on the lack of philosophy in schools. Stoicism should be taught as a subject, for it's fundamental beliefs are logic and reasoning is our supreme characteristic. We are here to flourish, and to do that we must all work together, else we will not prosper long term. Short term we can do well as individuals, but long term every individual expires or are returned to whence they came.
Enough; Jasper elk a few years ago in the fall.