Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment
— David Attenborough
Impressive Human Population quotations
Jails and prisons are designed to break human beings, to convert the population into specimens in a zoo - obedient to our keepers, but dangerous to each other.

The Delaware Estuary has sustained a human population for thousands of years, but by the end of the 19th Century, increased population and industrialization had transformed much of the upper Estuary watershed.

One-fourth of humanity must be eliminated from the social body.
We are in charge of God's selection process for planet Earth. He selects, we destroy. We are the riders of the pale horse, Death.
Every politician, clergyman, educator, or physician, in short, anyone dealing with human individuals, is bound to make grave mistakes if he ignores these two great truths of population zoology: (1) no two individuals are alike, and (2) both environment and genetic endowment make a contribution to nearly every trait.
We receive reports now on a daily basis from our own people on the ground in Darfur on widespread atrocities and grave violations of human rights against the civilian population.

No country that permits firearms to be widely and randomly distributed among its population - especially firearms that are capable of wounding and killing human beings - can expect to escape violence, and a great deal of violence.
It has long been recognized that an essential element in protecting human rights was a widespread knowledge among the population of what their rights are and how they can be defended.
The power of population is so superior to the power of the earth to produce subsistence for man, that premature death must in some shape or other visit the human race.

...the chief cause for the impending collapse of the world - the cause sufficient in and by itself - is the enormous growth of the human population: the human flood. The worst enemy of life is too much life: the excess of human life.
This planet might be able to support perhaps as many as half a billion people who could live a sustainable life in relative comfort. Human populations must be greatly diminished, and as quickly as possible to limit further environmental damage.
Right now over 70 percent of the world population is convinced that something serious has to be done about the dangers facing the planet. ...Most of humanity wants to know how to make the change. It's one of those tipping-point times where things can change unbelievably fast.

I’d like to see Manhattan underwater.
I’d like to see when the human population plummets and there are no more high rises, because nobody’s buying them. I’m excited about that. Money and desire—all that is going to collapse, and wild green grasses are going to take over.
If I were reincarnated I would wish to be returned to Earth as a killer virus to lower human population levels.
One way to identify the optimal human diet, pretty obvious to all but fundamentalist reductionists, is to survey and compare populations as they already exist, and see what they eat and how healthy they are.

Our challenge, our generation's unique challenge, is learning to live peacefully and sustainably in an extraordinarily crowded world. Our planet is crowded to an unprecendented degree. It is bursting at the seams. It's bursting at the seams in human terms, in economic terms, and in ecological terms
The human population can no longer be allowed to grow in the same old uncontrollable way. If we do not take charge of our population size, then nature will do it for us and it is the poor people of the world who will suffer most
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.

Thus will the fondest dream of Phallic science be realized: a pristine new planet populated entirely by little boy clones of great scientific entrepreneurs free to smash atoms, accelerate particles, or, if they are so moved, build pyramids -- without any social relevance or human responsibility at all.
Human use, population, and technology have reached that certain stage where mother Earth no longer accepts our presence with silence.
We are entering a new phase in human history - one in which fewer and fewer workers will be needed to produce the goods and services for the global population.

Still, whether we like it or not, the task of speeding up the decrease of the human population becomes increasingly urgent.
How a man who holds the entire population of a country as his prisoners, and punishes the families of those who escape, can be admired by people who call themselves liberals is one of the many wonders of the human mind's ability to rationalize. Yet such is the case with Fidel Castro.
The prodigious waste of human life occasioned by this perpetual struggle for room and food, was more than supplied by the mighty power of population, acting, in some degree, unshackled, from the constant habit of emigration.

To this day, I enjoy nature, the luxury of undisturbed wilderness, forests, mountains, lakes, rivers and deserts and their wildlife. But I also know that the greatest danger to their perpetuity is the pressure of human population.
Almost half of the population of the world lives in rural regions and mostly in a state of poverty. Such inequalities in human development have been one of the primary reasons for unrest and, in some parts of the world, even violence.
It was a time of madness, the sort of mad-hysteria that always presages war.
There seems to be nothing left but war--when any population in any sort of a nation gets violently angry, civilization falls down and religion forsakes its hold on the consciences of human kind in such times of public madness.

There can be no real growth without healthy populations.
No sustainable development without tackling disease and malnutrition. No international security without assisting crisis-ridden countries. And no hope for the spread of freedom, democracy and human dignity unless we treat health as a basic human right.
...there is an optimal balance, depending on the manner of man's life, between the density of human population and the tolerances of nature. This balance, in the case of the United States would seem to me to have been surpassed when the American population reached, at a very maximum, two hundred million people, and perhaps a good deal less.
Everything we think about regarding sustainability - from energy to agriculture to manufacturing to population - has a water footprint. Almost all of the water on Earth is salt water, and the remaining freshwater supplies are split between agricultural use and human use - as well as maintaining the existing natural environment.

...Conservatives have excellent credentials to speak about human rights. By our efforts, and with precious little help from self-styled liberals, we were largely responsible for securing liberty for a substantial share of the world's population and defending it for most of the rest.
The AIDS epidemic, rather than being a scourge, is a welcome development in the inevitable reduction of human population... If it didn't exist, radical environmentalists would have to invent it.
With earth's burgeoning human population to feed we must turn to the sea with understanding and new technology. We need to farm it as we farm the land.
Man will survive as a species for one reason: He can adapt to the destructive effects of our power-intoxicated technology and of our ungoverned population growth, to the dirt, pollution and noise of a New York or Tokyo. And that is the tragedy. It is not man the ecological crisis threatens to destroy but the quality of human life.
Human population growth is probably the single most serious long-term threat to survival. We're in for a major disaster if it isn't curbed...We have no option. If it isn't controlled voluntarily, it will be controlled involuntarily by an increase in disease, starvation and war.