The title below that best expresses the ideas?
The population of the world has increased more in modern times than in all other ages of history combined. World population totaled about 500 million in 1650. It doubled in the period from 1650-1850. In 1970’s the population was more than five billion. Results based on research by the United Nations indicated that it went up by almost 50% during the twenty-five years between 1975 and the year 2000, reaching seven billion by the turn of the century.
No one knows the limits of population that earth can support. Thomas Malthus, an English economist, developed a theory that became widely accepted in the nineteenth century. He suggested that because world population tended to increase more rapidly than the food supply, a continual strain was exerted upon available resources. Malthus cited wars, famines, epidemics, and other disasters