One of the most important ways to ensure social sustainability is to improve social problems. By that I mean improving overall quality of life for people. This includes moving further away from patriarchal ways of thinking, caring for our people rather than allowing this political and financial polarization to take place, treating corporations like people, etc. I strongly believe that development starts with the positive treatment of people, not trying to suck everything you can from them. As far as the population goes, I don’t really see a possible solution. At this point our population will continue to be ever growing and I think it’s too late to reverse what’s happened.
However, I do think we might have a chance at slowing it. Already we see contraceptives are easily accessible, but I don’t think that’s enough. I think we need to enforce sex education as much as possible in schools, and even universities. I think this will mildly help to slow population growth. Overall, the betterment of our world will stem the treatment of our people, and especially how they are educated.