Global food production has already appropriated almost half the land suitable for agriculture.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pushing-horizon
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tehelka-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/croplands
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-security
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hyderabad
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/un
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farmers
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arunachal
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka