What are some of the causes of population growth?

What are some of the causes of population growth?

Find Expert Advice on About.com. Causes of population growth include high birth rate, low infant mortality, increased food production and improvement of public health. In the past, the death rate was high due to lack of food and poor health facilities. Discoveries and inventions in food and health sectors have saved lives.

Which is the leading cause of overpopulation in the world?

Human overpopulation occurs if the number of people in a group exceeds the carrying capacity of the region occupied by that group. 1. Better health care leads to a decline in the death rate: The reduced mortality rate is one of the leading causes of overpopulation.

Where does the number of deaths per capita come from?

For the majority of countries, this is from national authorities. In some cases, like China, the United States, Canada or Australia, city reports or other various state authorities were consulted. In this statistic, these separately reported numbers were put together.

What are the consequences of the world population explosion?

But in all scenarios, world population will continue to grow for some time due to population momentum. Finally, the paper outlines the debate about the consequences of the population explosion, involving poverty and food security, the impact on the natural environment, and migration flows.

What is the cause of overpopulation in the world?

The primary (and perhaps most obvious) cause of population growth is an imbalance between births and deaths. The infant mortality rate has decreased globally, with 4.1 million infant deaths in 2017 compared to 8.8 million in 1990, according to the World Health Organization (WHO).

What was the highest rate of population growth in history?

Over the course of the first fifty years of the 20th century, however, annual growth increased to up to 2.1%—the highest annual growth rate in history, which was recorded in 1962. Since peaking, the growth rate has systematically been going down, with projections estimating an annual rate of 0.1% for 2100.

How does high birth rate affect population growth?

High birth rate in an area contributes to high population growth. This is referred to as natural increase. In addition, good maternity services have helped to decrease mortality rate of kids younger than six. High production of food helps to reduce death that results from hunger and malnutrition.