The combination of population growth and the growth in consumption is a danger that we are not prepared for and something we will need global co-operation on.
The United Nation's goal is to reduce population selectively by encouraging abortion, forced sterilization, and control of human reproduction, and regards two-thirds of the human population as excess baggage, with 350,000 people to be eliminated per day.
In the event that I am reincarnated, I would like to return as a deadly virus, in order to contribute something to solve overpopulation.
Childbearing should be a punishable crime against society, unless the parents hold a government license. All potential parents should be required to use contraceptive chemicals, the government issuing antidotes to citizens chosen for childbearing.
Birth control must lead ultimately to a cleaner race.
We have been God-like in our planned breeding of our domesticated plants and animals, but we have been rabbit-like in our unplanned breeding of ourselves.
Population growth is straining the Earth's resources to the breaking point, and educating girls is the single most important factor in stabilizing that. That, plus helping women gain political and economic power and safeguarding their reproductive rights.
The superior power of population cannot be checked without producing misery or vice.
Close to a billion people - one-eighth of the world's population - still live in hunger. Each year 2 million children die through malnutrition. This is happening at a time when doctors in Britain are warning of the spread of obesity. We are eating too much while others starve.
When motherhood becomes the fruit of a deep yearning, not the result of ignorance or accident, its children will become the foundation of a new race.
Rapid population growth and technological innovation, combined with our lack of understanding about how the natural systems of which we are a part work, have created a mess.
The broad masses of a population are more amenable to the appeal of rhetoric than to any other force.
We need to recognise that slowing population growth is one of the most cost-effective and reliable ways of easing pressure on our environment and securing a sustainable future for us all
Of course I know our economic growth can't match our population growth so of course I know we'll all get poorer until we get that number down - don't tell me, tell the other idiots!
When every province of the world so teems with inhabitants that they can neither subsist where they are nor remove themselves elsewhere... the world will purge itself in one or another of these three ways (floods, plague and famine)
Either we reduce the world's population voluntarily or nature will do this for us, but brutally
I think still it is very fine not to want children. There are far too many people in the world. It is my contribution to ecology.
One always returns to the fact that there are just too many of us, the population continues to rise and it's unsustainable
Excessive (population) growth may reduce output per worker, repress levels of living for the masses and engender strife
Overpopulation in various countries has become a serious threat to the health of people and a grave obstacle to any attempt to organise peace on this planet
World population needs to be decreased by 50%
Give dysgenic groups [people with 'bad genes'] in our population their choice of segregation or [compulsory] sterilization.
Should we now explain to UK couples who plan a family that stopping at two children, or at least having one less than first intended, is the simplest and biggest contribution anyone can make to leaving a habitable planet for our grandchildren?
Having one less child is the biggest contribution anyone can make to leaving a habitable planet
We cannot confront the massive challenges of poverty, hunger, disease and environmental destruction unless we address issues of population and reproductive health
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