how does human overpopulation effect the environment??

Answer 1

The more humans there are, the more resources we use.
We need farmlands and grasslands to feed us, we pollute the air and water and we are spreading over the Earth and crowding out the other species (every time we develop land for farming and living space and businesses, we take land from something 'wild')
Now eventually, we are going to do this to a point when the competition for resources is going to stop our population growth (this goes for any population, not just humans).
Population growth experts predict that the number of births will equal the number of deaths in the next 30-40 years. This is because people will be dying of disease, starvation and thirst as fast as we can create new people.
It is all a living space issue. As we deplete the resources, we put stress on the environment. We will one day get to the point where we HAVE to be environmentally responsible just to survive. Otherwise, we will die out and another species may evolve to dominate the planet.

Answer 2

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RE:
how does human overpopulation effect the environment??

Answer 3

overpopulation is the primary cause of all the world problems
polution,desertification,water... ,food shortage ,deforrestation,loss of animal habitat ,you name it

people use and need land,so more and more is being changed to accomodate human growth and devellopment

the necessary flora ,which permits life as we know it, is disappearing.

Eco-systems are being exchanged for desserts , concrete or roads.

An environmentally destructive wave is in motion, caused by expanding populations,and expanding agriculture

an increase in desserts definately affects the global climate and is for a large part responsible for the climate change we are experiencing now

World population has doubled in the last 50 years exceeding the growth of 4 million years (since we became homo sapiens).
To satisfy the growing demand farmers are cultivating unstable lands , too steep or dry to be sustainable.


Mono cultures ,aided by chemicals Exhaust and pollutes the soil .
Adding to this the effects of overgrazing has resulted in large scale desertification.

Each year billions of tons of topsoil are blown or washed away by storms.

Arable lands and their farms are lost all over the globe. Many farmers sons abandon farming and head for the cities. The farmers that are left have to feed some 70 million more people than the year before but with less topsoil.

Northern China is drying up, what once were millions of food producing people,

are now hungry refugees ,running for their lives from the all consuming dust storms.

This will have a great effect on world food prices when they start buying at what ever cost, to feed their people.

Over the last half century,
Population growth & rising incomes have tripled world grain demand from 640 million tons to 1,855 million

In the near future the global farming community will not be able to feed every body ,food prices will continue to rise. .

SUGESTED SOLUTIONS
at a meeting in Kopenhagen in 1998 it was suggested to bring the world population down by 60%,one cannot help but wonder at how this would be archieved

population control in the past and present

War (past .present and future)
Natures way disease(today,past and future)
Manufactured disease(suspected today)
cures that kill(suspected today)
poisoned consumer goods (suspected today)
making children infertile or gay,by raising the PH level in drinking water or even drinks (suspected today)
birth control,(in the past the Olmecs women ate yams to make them infertile,today we have several methods but most reach only the educated ,i handed out condoms to an native Mazatecca comunity in oaxaca ,and the church retrieved them all )
education on birth control(not enough,again the poor regions are excluded )
laws that limit childbirth per family(China
human sacrifice,may be the best option (Mayas ,Aztecs,druids)
.

Answer 4

Hmmmm - how does it affect Global Warming?

1800 - 900 million people
1900 - 1.6 billion
2000 - 6 billion people
2005 - 6.5 BILLION PEOPLE

ps for your paper
affect is the verb
effect is the noun

reduces the quality of living as resources have to be shared
and even rationed so that all can use them

Answer 5

If it continues to increase we will reach a point of WAR and will need to kill 3 billion people ,and then we will have Global Warming.

Answer 6

more people so more resources are used,fossil fuels burning which means more pollutions is used because it burns SOx's, which contributes to acid rain, and also burns carbon dioxide which contributes to global warming, and then burning also it helps add to littering, more poeple means there has to be more housing for them so more habitat loss occurs so that they can build a hoime...also density-dependent factors like disease increase

Answer 7

more resources are used, littering, disease increase
2000 - 6 billion people
2005 - 6.5 BILLION PEOPLE

Answer 8

in a simple equation, more people = more trash = more harm done to enviornment

Answer 9

uses more natural resources.

Answer 10

I don't know