By 2025 there will be 9 billion people on Earth, all needing food. A look at the best ways to stave off starvation.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/four-ways-feed-world
[2] http://admin.indiaenvironmentportal.org.in/category/author/debora-mackenzie
[3] http://admin.indiaenvironmentportal.org.in/category/journal/new-scientist
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-research
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rice
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maize
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farm-residues
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-prices
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-supply
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-conservation
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/irrigation
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fao
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/developing-countries
[16] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-security