In 2013 the United Nations Population Division revised its population projections to show that population could grow even faster than previously anticipated, especially in Africa. Planning ahead for feeding a hot, hungry, teeming planet is both a numbers game and social venture. Calories, climate change, and acres of land are some of the factors on one side of the equation. The 7 billion people in the world, projected to grow to 9.6 billion by 2050, are on the other.
Technically, farmers today grow enough food to feed everyone. But nearly 1 billion people on the planet periodically go without eating, in most cases because the food is too expensive or not available in the right places. That number could get a lot worse.