Neo-malthusianism's often used as a contemporary pejorative to dismiss those who're concerned that overpopulation may increase resource depletion or environmental degradation to a degree that isn't sustainable with the potential of ecological collapse or other hazards. It originates from the ideas of Thomas Malthus who described the relationship between population growth and the resulting impacts. The malthusian theory suggests a relationship between population growth and the resulting impact… (More on Neo-malthusianism)