even as the world's population touched the six-billion mark on October 12
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/showing-way
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population-trends
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/family-planning
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/education
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mexico