It is almost certain that humanity will find it difficult to feed everybody without some serious technological advances.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/gm-crops-ignoring-genetic-engineering-our-own-peril
[2] http://admin.indiaenvironmentportal.org.in/category/author/hari-pulakkat
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/genetic-engineering
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gm-crops
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/europe