The world’s population continues to grow rapidly. It makes sense to ask how big a population this planet can carry and what the implications of overpopulation might be in the future. Scientists have been looking at world population figures and asking these important questions. They have been able to make predictions about population numbers in the coming decades based on different factors. These experts have also provided recommendations and considerations about how the human race can deal with a growing population and growing strains on the Earth’s resources.
Population Growth Statistics
Population experts are always working on giving the best estimates of the world’s current population. They take into consideration various statistics, with national census data being the most important. These figures give a great measure of the current population and population trends, although they are estimates.
The current global population stands at an estimated 7.71 billion people as of February 2019. This number continues to grow, and the global population is expected to reach 8.6 billion by 2030 and 9.8 billion by 2050, according to some projections. The human race population is expected to keep growing until 2100.
Factors Affecting Population Growth
There are different factors that contribute to the national populations that are summed up to give the global population. The health of the people, the economic opportunities, and whether the nation is at war or peace all have a bearing on how the country’s population grows. Countries have different access to healthcare, and this also affects the mortality and infant mortality rates. Because of all these factors, population growth rates differ from country to country and from continent to continent.
One illustration of this is the data produced by the UN, showing the expected population growth for the world and all the continents between the years 2000 and 2050. The world’s population is expected to jump from 6.1 to 9.8 billion, which is a growth of 60%. The expected growth for Asia is 41%, Africa 209%, Europe -2%, South and Central America 48%, North America 39%, and Oceania 48%. Many different factors are at play to create such a varied picture of population growth. Combined, however, it is very clear that the world’s population is growing rapidly. The only question is what the limit is.
The Earth’s Carrying Capacity and Considerations Moving Forward
There are various studies and estimates that have been done about the Earth’s carrying capacity. These look at the size of the planet, the resources available, and how many people could be properly supported by the space and resources at our disposal. People need food, water, air, light, shelter, and warmth to stay on the planet. The more people there are, the greater the pressure on all of these.
Some scholars believe that the planet can sustain between 9 and 10 billion people. Other scholars are looking at the fertility rate as an indicator of how large the population can grow. This has been declining over the years, meaning that people are having fewer and fewer children.
The current estimates about when the world’s population is going to exceed the carrying capacity are useful to understand trends. At the same time, there are so many competing issues, which make it hard to know for sure what is going to happen in the next few decades. What is clear, however, is the need for the human race to monitor how the Earth’s resources are used. The human ecological footprint is based on the impact people living on the planet have. By monitoring sustainability issues such as energy usage, land and water usage, pollution, and many others, we can make sure that future populations are not at a disadvantage in terms of the resources available for them.