Stories tagged with carrying capacity
Electric Politics: Al Bartlett says "The Die is Cast"
Posted by Prof. Goose on December 18, 2007 - 11:40pm
Topic: Environment/Sustainability
Tags: albert bartlett, carrying capacity, Ecology, extinction, global warming, overpopulation, overshoot, peak energy, peak oil, population, Population growth, sustainability [list all tags]
George Kenney over at Electric Politics has quite the interview with Al Bartlett. Here's a link to the .mp3 download, and here's a link to the post itself, which has an in-line player and comments. George writes:
It's an enormous conceit to think that population increases are everywhere and always a good thing. In the blessed tradition, however, of neo-classical economic theory (aka 'free markets') such is the miracle of rational choice that left to themselves people will 'optimize' the rate of population growth: no natural limit on population exists. Nevertheless, in reality the unacknowledged costs of population growth mostly shift to future generations. Call it the ultimate Ponzi scheme. And if you think about it, population growth is the main driver of all our planetary scale problems, from warming to Peak Oil to food production, right down the list. Locally as well, even to diluted democratic practices of governance. Although it makes no sense whatsoever to tackle any of these without due consideration of the population factor most of the time population doesn't get mentioned — the implications are so politically controversial. To help put population and its derivatives into perspective I turned to a man who's been sounding the alarm about sustainability for decades, Dr. Albert Allen Bartlett. It was a real privilege to talk with Al, who's as close to being a prophet as anybody can be these days. Listen, and pass the word! Total runtime an hour and sixteen minutes.
Amen, brother. (Feel free to link to other recent peak oil media in the comments as well.)
Six steps to “getting” the global ecological crisis
Posted by Prof. Goose on November 4, 2007 - 10:05am
Topic: Environment/Sustainability
Tags: albert bartlett, carrying capacity, Ecology, extinction, global warming, overpopulation, overshoot, peak energy, peak oil, population, Population growth, sustainability, William Catton [list all tags]

This is a guest post by John Feeney, Ph.D. Trained as a psychologist, John is today an environmental writer and activist in Boulder, Colorado. He began investigating environmental issues while fighting destructive residential development in a small Iowa town where he and his family lived for two years. His research pointed inevitably to the interacting roles played by population growth, the drive for economic growth, and our reliance on fossil energy in fueling the ecological crisis we now face. His website is called Growth Is Madness.
Some of us who examine and discuss environmental matters are constantly puzzled and frustrated by the seeming inability of elected officials, environmental organizations, and environmental and political writers to “get” the nature of our ecological plight. Could it be they’re simply unaware of the ecological principles which enable one to understand it?
The World's Expected Carrying Capacity in a Post Industrial Agrarian Society
Posted by Euan Mearns on November 1, 2007 - 10:00am in The Oil Drum: Europe
Topic: Environment/Sustainability
Tags: calorie, carrying capacity, food, infant mortality, life expectancy, pakistan, water [list all tags]
This is a guest post by WisdomfromPakistan. Wisdom is a computer engineer living and working in Karachi, a cultured city of some 20 million people. He has been conducting his own research into human nutritional requirements and the Earth's carrying capacity which he now wants to share with The Oil Drum readership.
As peak oil approaches, shortly followed by peak gas and eventually peak energy, we have to retreat to agriculture as the prime energy producer in society. Post-peak agriculture will be radically different to modern agriculture. Today’s agriculture is more an energy consumer than an energy producer. In developed countries it takes ten calories worth of energy from fossil fuels put into a farm in the form of fertilizers, pesticides and transportation fuel, to get one calorie back in the form of food (see also here and here).

Happy children fetching water
World Energy and Population: Trends to 2100
Posted by Stoneleigh on October 17, 2007 - 12:30pm in The Oil Drum: Canada
Topic: Environment/Sustainability
Tags: carrying capacity, energy, environment, original, overshoot, population, sustainability [list all tags]
This is a guest post by GliderGuider. It is also available on the author's own website.
Throughout history, the expansion of human population has been supported by a steady growth in our use of high-quality exosomatic energy. The operation of our present industrial civilization is wholly dependent on access to a very large amount of energy of various types. If the availability of this energy were to decline significantly it could have serious repercussions for civilization and the human population it supports.
This paper constructs production models for the various energy sources we use and projects their likely supply evolution out to the year 2100. The full energy picture that emerges is then translated into a population model based on an estimate of changing average per-capita energy consumption over the century. Finally, the impact of ecological damage is added to the model to arrive at a final population estimate.
This model, known as the "World Energy and Population" model, or WEAP, suggests that the world's population will decline significantly over the course of the century.
The Round-Up: July 24th 2007
Posted by Stoneleigh on July 24, 2007 - 1:00am in The Oil Drum: Canada
Topic: Site news
Tags: biofuel, carrying capacity, climate change, derivatives, financial engineering, migration, money supply, nuclear, oil sands, pipelines, population, water [list all tags]
Water concerns are emerging in North America as the world warms. The US wants a continental approach to water supply, but Canadians disagree. Meanwhile, in parts of England, there's "water, water everywhere, but not a drop to drink".
The 'true north' tries to be 'strong and clean', but can't seem to do a proper energy audit. Arctic gas pipelines move a step closer to reality. Power supply in Ontario tightens further, while Cameco discovers uranium in the soil. Can we harness tornado-power next?
The insatiable debt-monster of Wall street spreads from subprime to Alt-A, bond ratings spawn legal action, and Fannie Mae and Freddie Mac attempt a subprime bail-out. The savings rate stays negative south of the border, as Americans keep borrowing just to stay on the treadmill.

Oil pipeline accident causes spill in Burnaby, B.C.
The oil gushed for a reported 25 minutes before crews were able to staunch the flow.
"We had a vehicle hit an oil head," Cpl. Jane Baptista, of the Burnaby RCMP, told The Canadian Press on Tuesday.
"There was some oil spilled over the road. We have hazmat (hazardous materials) and Burnaby Fire Department on scene. Police have assisted with some evacuation of some residents there."....
....There are fears that a major environmental problem may be developing.
Local radio station News1130 reported that witnesses are described the scene as a "river of oil."
Peak Oil, Carrying Capacity and Overshoot: Population, the Elephant in the Room
Posted by Stoneleigh on May 7, 2007 - 9:25am in The Oil Drum: Canada
Topic: Environment/Sustainability
Tags: carrying capacity, overshoot, peak oil, population, sustainability [list all tags]
This is a guest post by GliderGuider.
At the root of all the converging crises of the World Problematique is the issue of human overpopulation. Each of the global problems we face today is the result of too many people using too much of our planet's finite, non-renewable resources and filling its waste repositories of land, water and air to overflowing. The true danger posed by our exploding population is not our absolute numbers but the inability of our environment to cope with so many of us doing what we do.
It is becoming clearer every day, as crises like global warming, water, soil and food depletion, biodiversity loss and the degradation of our oceans constantly worsen, that the human situation is not sustainable. Bringing about a sustainable balance between ourselves and the planet we depend on will require us, in very short order, to reduce our population, our level of activity, or both. One of the questions that comes up repeatedly in discussions of population is, "What level of human population is sustainable?" In this article I will give my analysis of that question, and offer a look at the human road map from our current situation to that level.
As I have mentioned elsewhere, the concepts of ecological science are the most effective tools for understanding this situation. The crucial concepts are sustainability, carrying capacity and overshoot. Considered together these can give us some clue as to what the true sustainable population of the earth might be, as well as the trajectory between our current numbers and the point of sustainability.

k Nation (Jim Kunstler)


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