The composition of a population can affects the surrounding environment. Currently, the global population has both the largest proportion of young people under 24 and the largest percentage of older adults in the world's history.
As young people will typically migrate, this leads to intensified urban environmental changes. We have consumed further resources in the last 50 years than during the whole time of humanity. The 20th century saw the most significant increase in the world's population in human history.
The consumption of resources such as land, food, water, air, fossil fuels, and minerals has skyrocketed. Waste products have also been adding up because of excessive consumption of air, water pollutants, toxic minerals, and greenhouse gases.
There are a lot of studies that are done about the relationship between population and the environment. One obvious relationship is that the higher the population, the higher the depletion of the natural resources that are available in the area.
The more that the global population continues to grow, the higher the possibility that a lot of the natural resources will become affected. There might not be enough water that will go around that people need in order to drink. There might not be enough food too in the future. There are also a lot of animals that tend to become endangered or extinct because of the habits of people who inhabit different areas.
The main relationship between population and environment lies between the size of population and change in environment. Generally, we can refer to this as the relationship between demographic factors population size, composition, and distribution, and the change in environment.
It is no more breaking news that the population of the world is increasing day after day, and it has a way of affecting the environment, either directly or indirectly. Global resources that are available in our environment seem to be on a limited level as the populace that are utilizing the resources are on an increasing level.
These global resources include forests, wild animals, arable crops, fish, and portable water. As the population increases, more landmass is being covered. This landmass was probably in use for agriculture purposes. However, when this landmass is being occupied, the amount of food production would reduce.
Population and environment maintain a complicated relationship. As the global population is on the rise, there are constraints on such global resources. In the second half of the twenty-first century, the destruction of farmlands contributed to the significant downfall of the lack of sustainable resources and food. It has been said that the consistent rates of production per capita land requirements for food production will be close to its limited capacity sometime over the twenty-first century. Population growth makes it difficult to keep up with the accelerating demands for water. How populations are dispersed across the globe also affects the environment. There is high fertility in some areas, while there is low fertility in others. Much of the population growth supports a rural to the urban pattern, and because of this, the Earth's population is also progressively urbanized. Less developed regions with urbanization typically incite infrastructure and environmental regulations, which is causing an ever-expanding population.