The world population is unlikely to collapse soon, and the imagined demographic outcome of some billionaires is by no means the greatest risk to the future of civilization.
Both China and India, the world's two most populous nations, will register population peaks before 2050, following which they will post sharp declines.
Study results show that the global agriculture system currently overproduces grains, fats, and sugars, while production of fruits and vegetables and protein is not sufficient to meet the nutritional needs of the future global population.