Created on February 6, 2024
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By Makenzie Martinez Pd. 2B
This graph above illustrates the population growth from 1800 to now.
200 years ago in 1800 the population size was around 1 billion people. Fast forward 200 years to the present time where we sit with around 8 billion people.That is 8 times more people than we had 200 years ago.Thanks to our many advances in science and medicine we are now able to have people live longer. The overall death rate has gone down significantly as people are living longer lives and having more kids/
In this graph you can see the projected growth of the world population in the next 50 years.
World population projected to reach 9.8 billion in 2050, and 11.2 billion in 2100. The current world population of 7.6 billion is expected to reach 8.6 billion in 2030.
The four stages of the demographic transition are;
- Pre-industrial stage
- Transition stage
- Industrial stage
- Post-industrial stage.
There are four properties that scientists use to predict population sizes. The four are; birth rate, death rate, emigration, and immigration. Births and immigration contribute to population increase, while deaths and emigration decrease population.Birth rate: The number of live births per thousand of a population per year. Death rate: The number of deaths per thousand per year.Emigration: The act of leaving one's own country to settle permanently in another; moving abroad.Immigration: The action of coming to live permanently in a foreign country.
This graph shows the death and birthday rates from the 1950s until the 2010's.
- Crime: Statistics show that the higher the population in an area the higher the crime rate.
- Overcrowding: Overcrowding can lead to overconsumption of our resources especially of single-use products that damage the environment, slow the ability of the earth to renew its resources, and contribute to climate change.
- Pollution: Larger population can lead to higher waste production, including sewage, pollution, and carbon emissions. This can result in air and water pollution, deforestation, and faster depletion of natural habitats, leading to biodiversity loss.
Three problems caused by rapid human growth are crime, overcrowding, and pollution.
This graph shows the growth rate in a developed country vs a developing country.
Approximately 240 babies are born each and every minute in lower income countries, compared to 25 per minute in those with higher incomes. Developing countries have higher population growth because they tend to have more traditional values than developed countries. Developed countries tend to have a lower fertility rate due to lifestyle choices associated with economic affluence where mortality rates are low, birth control is easily accessible and children often can become an economic drain caused by housing, education cost and other cost involved in bringing up children.
Developed vs Less Developed Countries