World Issues 12 Population Unit – Day 2. Where are we headed this unit?. Understand the world in balance. Factors that affect density and distribution Population pyramids – what do they mean and what do they show? Population paradox – ie . Hans Roslings
World Issues 12Population Unit – Day 2
Demographic Transition model seeks to explain the transformation of countries
from having high birth and death rates to low birth and death rates. In developed
countries this transition began in the early 18th century and still continues today.
Less developed countries began the transition later and are still in the midst of
earlier stages in the model
Hans Rosling argued that in order for population to cease at 9 Billion by
2050, the developing countries and merging economies will
have to incorporate better health care systems, family planning, and a stable
Paul R. Ehrlich – The Population Bomb
“The power of population is so superior to the power of earth to produce subsistence for man,
that premature death must in some shape or other visit the human race.”
Malthus, T.R. 1798. An essay on the principle of population, Chapter VII, p 61.
What was discussed in the one page article on the principle of
Other Population Theorists