Malthus’ believed that the
planet is overpopulated. However, if we consider that the amount of land and
resources needed to feed a meat eater are 600 times greater than those needed
to feed a vegetarian, we see that the planet could easily support a population
of over 100 billion people, and if we add the fact that desertification is
often the result of the intensive production of fodder for animal farming
industries, we come to the conclusion that the planet is at the moment
underpopulated.
The Vital Needs Theory - page 75