There is no quick fix for the 'population time-bomb' and even a world-wide one-child policy like China's or catastrophic mortality events may still result in 5-10 billion people by 2100, according
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/population-explosion-unstoppable-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/family-planning
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sustainable-development
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/people