How would you feed this many people? What technology would you use and what historical basis can you based your prediction of the future.

Problem: World population is at about 7.5 billion in the world today. The population will probably double within your lifetime exceeding the current carrying capacity of the planet. Use of Genetically Modified Organisms have increased crop yields and have increased the food carrying capacity of planet Earth.How would you feed this many people? What technology would you use and what historical basis can you based your prediction of the future.