World Population Trends
General Population Trends
Least Developed Countries
Large and growing populations of young people.
Their population is projected to double by 2053 and in some countries it will even triple.
High-Income and Raising-Income Countries
Growing populations of older persons.
Their population is slowly growing
or not growing at all.
Summary of the main points of the topic
VIDEO: OVERPOPULATION-THE HUMAN EXPLOSION EXPLAINED
DEMOGRAPHIC TRANSITION
Slow growth
Explosive stage
Slowdown
Stability
WORLD BANK GLOSSARY (EN-ES-FR) POPULATION TERMINOLOGY
Population Projections by the UN
High Variant
If fertility declines by less than assumed, the world population could grow to about 16.5 billion by the end of the century.
Medium Variant
The world population will grow to nearly 10 billion by the middle of this century, and will level off at around 11.2 billion by the end of it.
Low Variant
If fertility falls by more than assumed, the world population could slightly fall over current levels to about 7.3 billion.
RESOURCES
Why is Population Growing so Quickly?
Advances in modern medicines
Reduction of infant, child and maternal mortality
Increase in life expectancy
Improvements in Living Standards
Population Momentum
Past high fertility levels
More women of reproductive age
Improved survival rates