ننشر لكم موضوع تعبير عن الزيادة السكانية واضرارها,الكثافة السكانية بالانجليزي,برجراف عن over population,موضوع تعبير عن الزيادة السكانية بالافكار,برجراف عن حل مشكلة الزيادة السكانية,مقال عن الزيادة السكانية بالانجليزي,برجراف عن مشكلة الإسكان,برجراف عن how to solve the problem of overpopulation علي موقع كلام نيوز
موضوع تعبير عن الزيادة السكانية باللغة الإنجليزية.
ننشر لكم موضوع تعبير عن الزيادة السكانية واضرارها,الكثافة السكانية بالانجليزي,برجراف عن over population,موضوع تعبير عن الزيادة السكانية بالافكار,برجراف عن حل مشكلة الزيادة السكانية,مقال عن الزيادة السكانية بالانجليزي,برجراف عن مشكلة الإسكان,برجراف عن how to solve the problem of overpopulation علي موقع كلام نيوز
Over the last half century the population of the world has
exploded. At the time of writing there are seven billion people on the planet
and this number is projected to grow in a short period of time.Of all of the
environmental challenges facing the planet today overpopulation is one that
sometimes slips under the radar. Issues like pollution, climate change and
water shortages all seem to take precedence, but overpopulation is one of the
main contributors to many other environmental issues.
Overpopulation will place great demands on resources and land, leading
to widespread environmental issues in addition to impacting global economies
and standards of living.
The issue is compounded by the difficulty in providing solutions for
this problem and misunderstanding of the causes and effects of overpopulation.
Here we will cover both causes and effects of overpopulation in order
for you to have a more informed view of the risks that come with it.
The Causes
There are a number of factors that contribute to overpopulation. These are the leading causes:
Poverty: Poverty is believed to be the leading cause of overpopulation. A lack of educational resources, coupled with high death rates leading to higher birth rates, result in impoverished areas seeing large booms in population.
The effect is so extensive that the UN has predicted that the forty-eight poorest countries in the world are also likely to be the biggest contributors to population growth. Their estimates state that the combined population of these countries is likely to balloon to 1.7 billion in 2050, from 850 million in 2010.
Poor Contraceptive Use:Though the availability of contraceptives is widespread
in developed countries, poor planning on both partners’ parts can lead to
unexpected pregnancies. Statistics have shown that in Great Britain 76% of
women aged between 16 and 49 used at least one form of contraceptive, leaving a
quarter open to unexpected pregnancies.
Child Labor : As
distressing as it may be to hear, child labor is still used extensively in many
parts of the world. UNICEF estimates that approximately 150 million children
are currently working, primarily in countries that have few child labor laws.This
can result in children being seen as a source of income by impoverished
families. Furthermore, children who begin work too young also lose the
educational opportunities they should be granted, particularly when it comes to
birth control.
Reduced Mortality Rates: Improvement in medical technology has
led to lower mortality rates for many serious diseases. Particularly dangerous
viruses and ailments such as polio, smallpox and measles have been practically
eradicated by such advances.
Fertility Treatment: Though it only plays a minor role in comparison to the
other causes of overpopulation, improved fertility treatments have made it
possible for more people to have children.
The number of women using various fertility treatments has been on the
rise since their inception. Now most have the option of conceiving children,
even if they may not have been able to do so without such treatments.
Immigration:Unchecked immigration into countries may lead to
overpopulation to the point where those countries no longer have the required
resources for their population. This is particularly problematic in countries
where immigration numbers far exceed emigration numbers.
In some cases, immigrants may be attempting to escape overpopulation in
their own countries, only to contribute to the same issues in the countries
they move to. However, data also exists to show the immigration can bolster
economies, with the effect in the UK being particularly pronounced.
The Effects
Overpopulation can have a number of effects, most of which are negative as examined below.
Lack of Water: Overpopulation creates greater demand on the world’s freshwater supplies. As only roughly 1% of the world’s water is fresh and accessible, this creates a major issue.
Some estimates state that human demand for fresh water will stand at approximately 70% of what is available on the planet by 2025. This will place those living in impoverished areas that already have limited access to such water at great risk.
Lower Life Expectancy: While higher life expectancy is leading to increases in population in developed countries, lower life expectancy may be caused by the booms in population that less developed nations are experiencing.
A large proportion of the world’s population growth occurs in less developed countries. This stretches the resources these countries have thinner resulting in less access to medical care, fresh water, food and jobs, all resulting in a fall in life expectancy.
Extinction:The effect of overpopulation on the world’s wildlife is
also a major issue. As demand for land grows, so too does the destruction of
natural habitats, such as forests.
Some scientists warn that if present trends continue, as many as 50% of
the world’s wildlife species will be at risk of extinction. Data has also been
collected to show that there is a direct link between increases in human
population and decreases in the number of species on the planet.
Resource Consumption:As the population grows, so too does the amount of
resources needed to keep so many people alive. Food, water and fossil fuels are
all being consumed at record rates, placing greater demands on producers and
the planet itself.
Ironically, it is the discovery of many of these natural resources –
particularly fossil fuels – that have contributed to conditions that are
favorable to population growth. A study has shown that the world’s ecosystem
changed more rapidly in the latter-half of the twentieth century than at any
other point in history because of increased use of these resources.
Increased Intensive Farming:As population has grown over the years, farming practices have evolved to produce enough food to feed larger numbers of people. However, intensive farming methods also cause damage to local ecosystems and the land, which may pose problems in the future.
Furthermore, intensive farming is also considered a major contributor to climate change due to the machinery required. This effect will likely intensify if the population continues to grow at its current rate.
Faster Climate Change:Overpopulation directly correlates to climate change,
particularly as larger nations, like China and India, continue to develop their
industrial capacities. They now rank as two of the three largest contributors
to emissions in the world, alongside the United States.
97% of the scientific
community agrees that human activities are changing global temperatures. Larger
populations may speed these changes up, especially if more is not done to
reduce individual carbon footprints on a wide scale.
Potential Solutions:So now we know more about overpopulation and the effects it can have, but what can be done about it? There are a number of proposed solutions.
Access to Contraceptives:Access to birth control must go hand-in-hand with better sex education. After all, without it people cannot put what they have learned into practice.
The World Health Organization (WHO) states that 225 million women who are living in the developing countries would prefer to postpone giving birth but are not using any form of contraception. Many organizations, such as the American Congress of Obstetricians and Gynecologists (ACOG), also support improving access to contraceptives.
Changes in Policy: Many nations offer rewards, whether in the form of
financial incentives or increased benefits, to those who have more children.
This may lead to some couples having more children than they otherwise would if
they needed to worry about the financial consequences.
This is a difficult issue to confront. China’s “One-Child’ policy was
recently abandoned, in part, because of the restrictions it placed on freedom,
and it is likely that similar policies would be seen as equally restrictive.