Human population growth is a concern in few countries.
However, interestingly there are also countries who are worried about the decline in their population.
Those countries with heavy population explosion consider it as a threat to their economy and well-being.
While those with a decline in population worry that there will not be enough workforce to support their economy.
So either too much of it or too less of it is detrimental to the country and its well-being.
However, when both aspects are comparison to each other, it seems heavy growth in population is too problematic.
Because, it has many other associated problems.
These problems are not related to the economy of the nation alone. But, also to the environment and the society in it.
Problems of overpopulation
Health issues: Overpopulation i.e. high population density countries are prone to many health issues. Due to increase in proximity between people at places of residence, the chances of spread of infections is quite higher. This is more problematic in cases of epidemics like recent zika virus infection
Dirty and unhygienic surroundings:
Localities of overpopulation catch up dirt faster. This is because too much of activity and human waste accumulate at a faster rate.
This applies even to the public transport system and places like parks, hotels, halls etc.
So decrease in population will contribute to cleaner and hygienic environments.
Employment is an option for one to work and earn. But the number of positions are always fixed and limited in any sort of business. So the more population, the difficult it would be to accommodate everyone into jobs.
Poverty is mostly a state of inability to make financial movements in between people. But still, countries of the high population generally have many people in the line of poverty than those countries with less population. This can be easily seen in the current trends where people from certain countries are richest in the world yet, their countries have a number of poor people. So it will be like rich and poor stay side by side.
Law and order situation is controlled by law monitoring personnel and also proper technical vigil. When the population is so huge, it will be quite tough to manage law and order situation as always the people to security personnel ratio has a wide gap.Also other factors due to over population like unemployment, poverty will encourage citizens to neglect and violate the law.
Due to the huge population, it would be tough for any nation to provide better education resources to all the people who wish to study. Since education is expensive, many like to perceive it at minimal cost. But due to huge population competing for the seats, some have t0 miss the desired opportunities. So many a times a talented and intelligent candidates will be unable to perceive their education in high populous countries and try to move to other countries for better options.
Effects of Overpopulation on the Environment
Human overpopulation Problems are not limited to society to alone. It can also destroy the environment around.
Overuse of natural resources:
More the population, the more is the requirement of natural resources like water, land, forests etc.
Due to larger demand, there is greater demand and more is exploitation of ground water, land for agriculture and industries and also deforestation. Less population will help avoid this over use of natural resources.
pollution is of different types like air, water, land etc. Due to more population, there is high human activity like more travel, more vehicles, more release of sewage water etc. These issues will lead to enhancement in pollution.