The fact is that there is enough food in the world for everyone. But tragically, much of the world's food and land resources are tied up in producing beef and other livestock--food for the well off--while millions of children and adults suffer from malnutrition and starvation.
A figure of speech in which a positive is stated by negating its opposite. Some examples of litotes: no small victory, not a bad idea, not unhappy. Litotes is the opposite of hyperbole.