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NINE BILLION PEOPLE??? That is just too many people. Let's work towards a negative population growth. My solutions are to create universal, free, non-compulsory: Birth control on demand. A well-rounded education including history, world systems, science, sex*, sociology, etc. *There are too many teens, and even adults, who know nothing whatsoever, and find themselves pregnant and don't know why. That is part of the nine billion problem, and DON'T blame it on the two-thirds world. All these problems are worldwide.