World Population, Agriculture, and Malnutrition 13 billion 13 billion World Population, Agriculture, and Malnutrition 13 billion 13 billion 13 billion 13 billion 13 billion World Population, Agriculture, and Malnutrition doubled 13 billion World Population, Agriculture, and Malnutrition 32 billion hectares 13 billion poorer quality of life 13 billion 13 billion World Population, Agriculture, and Malnutrition World Population, Agriculture, and Malnutrition doubled 13 billion 13 billion