The study of human population as a phenomenon yields many interesting trends and patterns. Human population has never been static. Malthus, a famous classical economist, observed that human population grows at geometric proportion whereas food grows at arithmetic proportion. The dynamics of human population is influenced by many factors – social, cultural, economic, environmental and technological factors.
According to demographers, between 1965 to 1970 the growth rate of human population was 2.1 per cent per annum, which is recorded as the highest. The coming generation will look back at the event as the most significant event in the history of human population. Human population never grew with such speed before 20th century and is never again likely to grow in future.
Demographers like astronomers keep on observing interesting trends and patterns in human population. As of now human population has been showing inflationary trend, that is, it is growing in size.