Overpopulation
166 quotes
Biography
Overpopulation or overabundance is a state in which the population of a species is larger than the carrying capacity of its environment. This may be caused by increased birth rates, lowered mortality rates, reduced predation or large scale migration, leading to an overabundant species and other animals in the ecosystem competing for food, space, and resources.
"We’ve just welcomed the 8 billionth member of the human race on this planet. That’s a wonderful birth of a baby, of course. But we need to understand that the more people there are, the more we put the Earth under heavy pressure. As far as biodiversity is concerned, we are at war with nature. We need to make peace with nature. Because nature is what sustains everything on Earth … the science is unequivocal."
"It's going to destroy it all. I use what I call my bathroom metaphor. If two people live in an apartment, and there are two bathrooms, then both have what I call freedom of the bathroom, go to the bathroom any time you want, and stay as long as you want to for whatever you need. And this to my way is ideal. And everyone believes in the freedom of the bathroom. It should be right there in the Constitution. But if you have 20 people in the apartment and two bathrooms, no matter how much every person believes in freedom of the bathroom, there is no such thing. You have to set up, you have to set up times for each person, you have to bang at the door, aren't you through yet, and so on. And in the same way, democracy cannot survive overpopulation. Human dignity cannot survive it. Convenience and decency cannot survive it. As you put more and more people onto the world, the value of life not only declines, but it disappears. It doesn't matter if someone dies."
"We are a plague on the Earth. It’s coming home to roost over the next 50 years or so. It’s not just climate change; it’s sheer space, places to grow food for this enormous horde. Either we limit our population growth, or the natural world will do it for us, and the natural world is doing it for us right now."
"As we slide seamlessly from 7 billion to 8 billion humans, each generation more powerful, polluting, and destructive than the previous, I have to wonder whether one century is too much time to allow a “natural” progression into negative population growth, or whether the biodiversity damage a century like this one will inflict could be incalculable and irreversible, if not terminal for us. Think about the honey bees and hummingbirds. Think about the sudden absence of insects we are seeing all over the world, and how that soon may affect populations farther up or down the food chain. Now, Mr. Biotech Billionaire, are you serious about populating the world with thousands or millions of bicentiniarians [sic] and tricentinarians [sic]?"
"Whereas the unconscious operations and blind forces of the planet have provoked turbulent changes over the last 4.5 billion years of earth’s evolutionary history, now change is being directed by a conscious and volitional agent – "humanity." We cannot speak of humanity equally, to be sure, as the problem was caused by the industrialized capitalist West and the poorer nations who contributed least to climate crisis will be hit the hardest. But nations such as China, India, and Brazil are major contributors, and the cumulative impact of 7.5 billion people on the planet is causing extinction and collapse everywhere. The stability of the Holocene is now gone, changes are accelerating beyond our understanding and control, and chaos waits at our door."
"The geometric growth rate of humans is unprecedented and never in the history of the earth has a single species grown to such bloated proportions, completely out of balance with living systems. The problem is only worsening. On conservative estimates, the human population is expected to swell upwards to 8–10 billion by 2050, and perhaps expand significantly by 2100. Human population growth represents a crisis of the highest order, but of course, it is only one aspect of multiple crises -- including species extinction and climate change -- merging together in a perfect storm of catastrophe that forms the daunting challenges facing humanity in the Anthropocene."
"Currently, the operation of our present industrial civilization is almost wholly dependent on access to huge amounts of fossil fuels. It is important to understand that fossil fuels, especially oil, are not simply used to manufacture and propel passenger automobiles or trucks. They also facilitate the mass assembly of tractors, plows, irrigation pipes, and pumps and then turn around and power them also. They constitute the chemical base of many crucial fertilizers and pesticides. They are also the building blocks of agricultural plastics. They refrigerate perishables. In short, the modern industrial agriculture system could not function without copious amounts of fossil fuel. In the absence of fossil fuel-based industrial agriculture, world food production would plummet to a scale completely inadequate to sustain our current population size, let alone the net addition of over 80 million more people each year. The other side of the coin is that when humans co-opt the extraordinary power found in fossil fuels, we become “overpowered” – and that is how we are over-powering the Earth’s biosphere. We cannot destroy rainforests at the rate of several football fields per minute, trawl the deep oceans, attempt mass-scale aqua-culture, fragment habitat with asphalt roads, or construct miles and miles of urban sprawl without the power of fossil fuels. In summary, fossil fuels underwritten both our population size and growth and our discretionary (over)consumption."
"In my opinion, you have out-of-control population growth, and you have fewer and fewer [resources]—we are heading for the biggest train wreck our civilization has ever come across ever. Ever. And I think that within 40 or 50 years, we’ll be there. If your population curve is on an exponential growth, and the resources are on an exponential decline, what happens first is you get increases in wealth discrepancy, which means that you get rich pockets of gated communities with security guards outside them, and you get more and more poverty outside that area. And the resources go down, and people start having resource wars over water and food and agriculture and arable land, and then you have Joburg in 2050. And you can see signs of it everywhere. It’s just overpopulation and lack of resources. We just aren’t in control of our destiny."
"... Reverend THOMAS MALTHUS' prediction made in 1798—that man would reproduce himself into a condition of "misery and vice" because of the growing imbalance caused by the multiplication of his own numbers by geometric progression, while his food supply was increasing arithmetically—is as valid today as when it was made. He was a visionary and saw clearly the monster of overpopulation. The only error in his prediction was one of a "few seconds on the clock of human occupancy of the earth". We, agriculturists, can buy at most a few decades of time in which to bring population growth into successful balance with food production."
"It seems self-evident that our fundamental predicament of ecological overshoot is a direct result of humanity’s growth with too many people consuming too many resources and producing too many waste products for a finite planet dependent upon healthy ecological systems. And while this doesn’t require much explanation for those who acknowledge that we live upon a world with finite resources and limited capacity to compensate for our waste production, there are still many who believe that Homo sapiens’ rather unique cognitive abilities and technological prowess can and will ‘solve’ the many challenges we appear to be encountering as we reach and surpass the planetary limits of our relatively recent explosive growth, global expansion, and industrialisation."
"All living species must take from nature to survive, and we are no different. But unlike other species, there seems to be no end to our quest for food, comfort, shelter, sex — the fundamental necessities of survival that are now pursued in overdrive, far beyond our existential needs. We are compelled to progress, and have extracted resources from the land since we first stood on two feet. The entire twentieth century has been a revving up of this large consumptive engine, and this insatiable human striving has assaulted the very planet that sustains us. In a very short period of time, humankind, with its population explosion, industry and technology, has become an agent of immense global change. What this civilization leaves in the wake of its progress may be an opened and emptied Earth. But in performing these incursions, we also participate in the unwitting creation of gigantic monuments to our way of life."
"Global biodiversity decline is best understood as too many people consuming and producing too much and displacing other species. Wild landscapes and seascapes are replaced with people, our domestics and commensals, our economic support systems, and our trash."
"During the past hundred years, Homo sapiens population increased from 2 billion to nearly 8 billion and the United Nations (2019) projects an increase of 3 billion more by 2100, unless steps are taken to reduce this population growth. Ignoring this projected increase means ignoring a major driver of the unfolding biodiversity crisis; accepting current bloated human numbers as an appropriate status quo means accepting a biologically impoverished planet."
"Thomas Malthus, an eighteenth-century economist, once predicted that because our population size increases exponentially while our food supply increases arithmetically, our population will one day exceed our ability to sustain it. While this has now been disproven with the creation of processed foods and genetically modified organisms, [Peter] Farb’s paradox may hold true. Because Earth’s population is growing, we increase our food production. Then, because we have a surplus of food, people are more well-nourished, leading to higher life expectancies and lower infant mortality rates, and people are able to have more children. This cyclical paradox is not healthy for our planet because while we may be able to sustain our growing population’s appetites, our other important resources, such as water and oil, are dwindling. To have a sustainable population size, we should be reproducing at a replacement rate, much like Denmark and Japan are."
"Today [hu]mankind is locked into stealing ravenously from the future. Famine in the modern world must be… one of several symptoms reflecting a deeper malady of in the human condition—namely, diachronic competition, a relationship whereby contemporary well-being is achieved at the expense of our descendants. By our sheer numbers, by the state of our technological development, and by being oblivious to differences between a method that achieved lasting increments of human carrying capacity [agriculture] and one that achieves only temporary supplements [reliance on fossil fuels and other mined substances], we have made satisfaction of today's human aspirations dependent upon massive deprivation for posterity."
"We are already living on an overloaded world. Our future will be a product of that fact; that fact is a product of our past. Our first order of business, then, is to make clear to ourselves how we got where we are and why our present situation entails a certain kind of future. […] It is the story of a world that has again and again approached the condition of being saturated with human inhabitants, only to have the limit raised by human ingenuity. The first several rounds of limit-raising were accomplished by a series of technological breakthroughs that took almost two million years. These breakthroughs enabled human populations repeatedly to take over for human use portions of the earth’s total life-supporting capacity that had previously supported other species. The most recent episode of limit-raising has had much more spectacular results, although it enlarged human carrying capacity by a fundamentally different method: the drawing down of finite reservoirs of materials that do not replace themselves within any human time frame. Thus its results cannot be permanent. This fact puts mankind out on a limb which the activities of modern life are busily sawing off."
"Scarcely more than two generations had tasted the fruits of industrialization when the growth of population was still further accelerated by truly effective death control. The role of microorganisms in producing diseases was discovered. In 1865 the practice of antiseptic surgery began. It serves... as a reasonable demarcation of the beginning of an era filled with related breakthroughs in medical technology: hygienic practices, vaccination, antibiotics, etc. The total effect of this recent series of achievements has been to emancipate mankind more... from the life-curtailing effects of the invisible creatures for which human tissues used to serve as sustenance. Like other prey species newly protected from their predators, we have been fruitful and have so multiplied that we have much more than "replenished" the earth with our kind."
"People displayed either persistent ignorance of the carrying capacity concept or naive faith that carrying capacity could always be expanded, [and] that limits could always be transcended. Such an assumption seemed to underlie the stubborn refusal of capitalists and Marxists alike to acknowledge that the myth of limitlessness had, at last, become obsolete. There was also the assumption that further advances in technology would necessarily enlarge carrying capacity, not reduce it. Enlargement of carrying capacity had been the role of technology in the past; however… there has been a reversal of this role in the industrial era. Technology has enlarged human appetites for natural resources, thus diminishing the number of us that a given environment can support."
"[Hu]man[s]... have imagined... [themselves] to be more unlike other mammals than [t]he[y] really... [are], so when human behavior has shown these same characteristics, various other explanations have been put forth which have obscured the significance of population pressure itself. In the twentieth century, with human numbers enlarged and resource drawdown becoming significant, [hu]man[kind] went to war. [T]he[y] rioted in the streets. [T]he[y] committed more... crimes of violence. [...] [Their] political attitudes polarized and [t]he[y] created totalitarian governments, some of which gave license to sadistic tendencies. A generation gap widened and deepened. In spite of earnest efforts by humane activists to inhibit racism and to rectify economic inequality, disparities between people remained and animosities became more virulent. Standards of decency in behavior toward others and expectations of considerate self-restraint were eroded and degraded in many places."
"We need to realize the "load" with which we humans burden the planet's ecosystems consists of more than just a population number. People living by different cultures not only reproduce at different rates; they impose very different per capita ecological impacts. Culture includes a population's technology and people's ways of organizing themselves. Each of us living in a "developed" country (i.e., industrialized far beyond anything conceivable to Malthus) has an enormously greater resource appetite and environmental impact than does each resident of a so-called "developing" country. For our grossly unsustainable manner of living, 6 billion is far too many."
"We are in the sixth mass extinction event. Unlike the previous five, this one is caused by the overgrowth of a single species, Homo sapiens."
"Over the last century the pace of many human activities has so accelerated, and human overpopulation grown so severe, to have created a dramatic global environmental transformation. Most natural ecosystem have been highly modified or have disappeared altogether, and the abundance of wildlife has been greatly reduced."
"Our use of energy has been increasing ever since we discovered and mastered fire and developed agriculture, but mostly since we gained access to a vastly increased energy supply by extracting millions of years of stored and concentrated solar energy from the Earth’s crust in the form of fossil fuels. Combined with the development of new energy conversion techniques, this energy bonanza made it possible to lift the secular barriers to human population and output growth. The new energy sources, forms and uses that came online since the turn of the 19th century gave us access to more materials and enabled the invention of new and increasingly sophisticated exosomatic instruments (i.e. machines), which in turn made it possible to access ever more energy and matter and to transform them ever more effectively and efficiently. This resulted in a rapid rise in our total energy and material “throughput” (i.e. the flow of raw materials and energy from the biosphere’s sources, through the human ecosystem, and back to the biosphere’s sinks), which is what we commonly measure through the proxy concept of “economic growth”. This rise never stopped since then, even if the global distribution of the flows of energy and material inputs, outputs and wastes evolved over time. Our efforts to increase the “energy efficiency” of our machines and processes (i.e. reducing the amount of energy needed to perform certain tasks) never resulted in a reduction of the total energy we used, but on the contrary only contributed to create more room for increasing the rate of our consumption."
"Environmental analysts regard a sustainable human population as one enjoying a modest, equitable middle-class standard of living on a planet retaining its biodiversity and with climate-related adversities minimized. Analysts' estimate[s] of that population size vary between 2 and 4 billion people, a figure obviously well below the present 7.9."
"The situation in which we find ourselves today is unique as regards the magnitude and rate of growth of the human enterprise. The turn now being taken by the vicious circle is tremendous. […] The mastery of fire, one of humans' first instances of technological development, continues to be of paramount importance today with the burning of fossil fuels. And so the vicious circle of the development of humankind churns on, and does so with ever greater momentum due to the constantly increasing consumption of fossil fuels and metals, with only the tiniest sign of resistance in the form of the efforts of environmental organisations and green political parties."