Factors that Affect the Human Population

Factors Affecting the Population The population is rapidly increasing due to improvements in agriculture, living environment and antibiotics / vaccination. The increase in population has led to deforestation, pollution, loss of habitat. All of these imposes higher demands on the Earth's resources. Wild animals and their habitats are harmed by the release of greenhouse gases such as carbon dioxide, methane, carbon dioxide and nitrogen oxides.

Population: Population growth is the main factor affecting the environment. In other words, overpopulation means more people meet their needs. Almost all the environmental problems we are facing today can be traced back to the world's population growth. The population reached 6 billion people, the world's annual growth rate is 1.8%, three people join the earth per second. This represents an increase of nearly 60% since 1970 and a 150% increase since World War II. (Miller, 1992)

We all know that the population is definitely the main cause of environmental problems. However, little is known that the population is only one of several factors affecting the environment. The extent to which population growth can be regarded as a problem depends on other factors. Widely used formulas help to understand which elements actually interact and make a big impact This is the IPAT model proposed by Harvard University John Holdren. This model represents the overall impact of interactions of population, wealth, and technology on the environment.

Factors that increase or limit population growth can be categorized into two categories based on how individual factors are affected by the number of individuals occupying a particular area or population density. As the population size approaches the capacity of the environment, the intensity of the density dependence factor increases. For example, resource competition, predation and infection rates increase with population density, which may ultimately limit population size. Regardless of population density, the increase in population is restricted by other factors, such as pollution, seasonal abnormal weather, natural disasters (such as hurricanes, fire, drought, floods, volcanic eruptions) affect the population