New York: The world
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/world-population-hit-9bn-2050
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/people
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population-trends
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global