What may be some of the causes for human population explosion?

Answer 1

Peoples will not like the answer :
There are no more wars like in the olden days - centuries ago !
Medicine progress - we are getting older - living longer

Answer 2

Actually, there's very little "maybe"--this is pretty well understood. The massive increase in populatioon over the last 150 years has three (interacting) causes:
1) an unprecidented increase in food supply--the result of modern technology and science
2) the advent of efffective medical care, particularly public health/sanitation, vaccines, and antibiotics.
NOTE--the way this worked is that infant mortality rates dropped drastically--increasing the base population. Equally important, lifespans have been lengthened enormously. Example: if the current lifespan in the US (78) was still what it was in 1900 (47 yrs) the current population would be 180 million instead of 300 million.

The third factor is cultural, not technical. There is a nearly one-to-one correlation between birthrate and the socio-economic position of women ina society. In industrialized nations where women have access to education and jobs, birthrates are low. In coutries where patriarchal norms are still the rule, birthrates are high.

Finallly--currentdemographic trends show the world population stabilizing at about 11 billion by the end of the 21st century. And while that appears to be a solid projection, it may not hold if current medical research suceeds in conquering the aging process itself during this century. Personal opinion (though this isn't my field, I'm fairly familiar with what's going on)--they will do this. In which case that population projectiongoes out the window--along with much of our existing socio-economic system.

Answer 3

What population explosion. The term explosion implies a sudden step change in human population, this has not occured. Population growth continues to show a classic exponential pattern.

The reason for continued growth, however, is simple: Improved agriculture resulting in increased capacity to feed the population and improved public health resulting in a substancial reduction in early mortality.

Answer 4

Poverty leads to an explosion of the human population. Here are some of the main reasons:

1. People who are poor know that some of their children will probably die. They then have children just in case to replace the ones who might die.

2. When poor people get older, they do not have retirement policies or anything similar. They have no income. Their only means of support is if they have children who can take care of them.

3. Poverty breeds oppression, especially of women. This leads to increased child birth rates, and more poverty.

4. Some religions preach that contraception is immoral and/or that it is good to have lots of children.

5. Lack of access to information on family planning, especially where there is poverty, results in increased birth rates.

6. Wherever women do not have equal or near equal rights with men, they are treated as little more than objects to be used sexually and to bear children to make the man "proud" and "great". In these societies, women may deliberately seek to have children as their status is elevated because they are "useful" and are "contributing" something.

Answer 5

Population explosions occur in all of nature, not just with humans. For example, in a broth, e. Coli will grow exponentially, first starting out slowly, then rapidly growing.

But... as the food supply runs out in the broth, the population will first level, then drop. As such, this can and most likely will happen to humans as well, at least if we continue at our current lifestyles.

For centuries, though, human population was kept in check by disease. That is, it was a slow growth. Women would die in childbirth. Children would die young. People would die in early (teens through their 30's) due to diseases (bacterial infections). However, as technology advanced, so did our lifespans. Improved medical practices meant less infections and cures for infections. We were better able to monitor a person's health. All of these led to longer lives - lives that previously ended early.

With people living longer, there were less deaths to counter-balance the new births. Plus, with people living longer, they were able to have more children.

This is why we now hear about heart disease, cancer and Alzheimer's. For most of human life, these were not issues. Yes, people had senility issues as well as heart attacks and cancer, but because people died relatively "young" in life, these issues were less dominant. Now that people live into their 60's and longer, these diseases are dominating. If humanity ever finds a cure for these problems (or at least a way to keep them under control), I'm sure it will just lead to a new set of problems.

Bottom line, technology is the main reason for the human population explosion. We figured out better ways to live, feed ourselves and cure diseases - i.e., we figured out ways to live longer. But if we ever reach a point where food supply or fresh water diminishes rapidly, we lose power (thus disabling technology), or we encounter a new disease (which is why so many fear avian flu as it is a potential epidemic), this will decrease the population, perhaps considerably.

Answer 6

better resources, government funds for families with children, more kids having sex.

Think of it this way, in order to keep the population stable every couple has to have 2 kids, one to replace the mum, one to replace the dad, couples who have more than 2 kids make the population increase. Then there's death, people are living longer because we have better hospitals and sanitation which prevents disease in the first place and any people who aren't dead get included in population statistics (obviously).

Answer 7

Ans
1.Lack of litteracy
2.Lack of proper guidance
3.Unemployment
4.Devepoment of Medical Science
are some of causes

Answer 8

The Industrial Revolution and its effects on agriculture, transportation, and medicine.

Answer 9

The need to tend the fields and Catholicism.

Answer 10

More births, less deaths and unwillingness to adopt family planning techniques.