Bernie Gunther
Fundamentalist Druid
Where do you get the figure of 90% from?TrueStory said:<snip> In an upcoming world without fossil fuels around 90% of the population will be busy to produce food and other basic necessities. <snip>
Where do you get the figure of 90% from?TrueStory said:<snip> In an upcoming world without fossil fuels around 90% of the population will be busy to produce food and other basic necessities. <snip>
Bernie Gunther said:Where do you get the figure of 90% from?
TrueStory said:It's a guess
laptop said:A quick search for hunter-gatherers hours per day site:.edu produces estimates in the range 2-5 hours per day.
'Course, that may imply a lower population density than ariculture might support. But that too may be an assumption based on a specific economic/cultural juncture.
The tropical forests of Paraguay are believed to contain several hundred species of edible mammals, birds, reptiles, amphibians, and fish, but the Ache have been observed to exploit only about 50 of them. Simiiarly, the forest holds hundreds of edible fruits and insects, yet the Ache exploit only about 40 of these.
Over 98% of the total calories in the diet we observed between 1980 and 1983 were supplied by only 17 different resources.
Most notable, shotgun hunters spent less than 2% of their time pursuing capuchin monkeys (with a return rate of 1,215 Cal/h), whereas bow hunters spent over 13% of their time chasing capuchin monkeys on the same foraging trips.
Our collected data-some 63 days’ worth of focal studies each on men and women and 1,055 person-days of subsistence studies-show that in the forest Ache men spend about 6.7 h/day in subsistence activities (searching, acquiring resources, and processing food) and another 0.6 h/day working on the tools used in subsistence activities. Men also spend about 4.5 h resting,
socializing, or in light activities each day (Hill et al. 985). Women spend about 1.9 h in subsistence activities, 1.9 h moving camp, and about 8 h in light work or childcare (Hurtado et al. 1985). The contrast between the genders may not be surprising in light of the finding that men provide 87% of the energy supplied in the Ache diet and close to 100% of the protein and lipid consumed.
These data contradict the simple generalization that foragers spend little time in subsistence work. The Ache spend more than twice as much time in procuring, processing, and transporting food as !Kung men and women, who take 3.1 and 1.8 h/day, respectively, for such activities (Lee 1979). We developed a model which assumes that foragers will spend time in those activities which lower the mortality rates of their chiidren and increase their own reproductive rates (Hawkes et al. 1985; Hill 1983; Hurtado 1985). This model explicitly rejects the notion, based on a concept of “limited needs” (Hawkes et al. 1985), that foragers work few hours per day because they do not need or want any more food.
TrueStory said:We have shotgun hunters as well, and using shotguns improves "productivity" more then six fold.
The world is still powered by oil, and even though discoveries peaked decades ago, nobody knows how much is left buried in the earth.
Peter Day asks some basic questions about the supply and demand of the energy that makes the world work.
Guests
Chris Skrebowski - Editor, Petroleum Review at the Energy Institute
Daniel Yergin - Chairman, Cambridge Energy Research Associates
Colin Campbell - Association of the Study of Peak Oil and Gas
Erling Overland - Acting Chief Executive, Stat Oil
Eric Mathiesen and Per Blystad - Senior Analysts, Norwegian Petroleum Directorate
Richard Webb - Raw Capital
Professor Peter Davies - Chief Economist, BP
Bernie Gunther said:2) All the other stuff. This includes fuels for farm equipment, which is mostly replaceable by work animals given sufficient land for pasture.
Bernie Gunther said:I personally don't think the difference is worth instituting slavery for
I'm imagining a particular kind of sustainability model here, and I think you're picturing something different. I don't think trying to untangle our differing assumptions about horses is necessarily interesting. Perhaps we should step back a bit.TrueStory said:The biggest problem with animals: you can't park a horse in the garage when you don't need it.<snip>
TrueStory said:The biggest problem with animals: you can't park a horse in the garage when you don't need it.
If you replace a 50 hp tractor with 5 horses, than you will have 10 fold power reduction, you will need land for pasture and you will have to stock hay for wintertime, you will have to clean the dung, you will have to give them fresh water 3 times a day - of course you wont have a tap in the stable, since we have no more fossil fuels - so you will get the water from a well. A rough estimate: you will spend at least half an hour daily with your horses even when you wont gain any energy from their work - better estimate is 2 hours daily for 5 horses - if we count the time needed stockpiling feed for wintertime.
For some people even today worth instituting slavery - even in the US...
Modern Day Slavery Around The World
The U.S. government estimates that 800,000 to 900,000 men, women and children are trafficked across international borders every year, including 18,000 to 20,000 into the United States. Some estimate total worldwide slavery to be in the millions.
Bernie Gunther said:What needs to be done is pretty clear to me though, global population has to be reduced over time (ideally by family planning rather than by the Four Horsemen), unsustainable energy use needs to be phased out, while we still have sufficient of it to boot-strap the transition to sustainable energy use.
Bernie Gunther said:If we mess it up badly enough, instead of reducing energy demand through appropriate technology, improving food security through sustainable forms of agriculture and reducing demand for both food and energy by managing global population down over the course of a few generations; we all just pretend that there isn't any problem until those Four Horsemen arrive to solve these problems for us the hard way. This appears to be the solution favored by certain factions within those countries most able to do something about it.
Backatcha Bandit said:Heads up - Tomorrow (Thursday 6th May) night, BBC Radio 4 at 8.30pm - or 9.30pm Sunday - 'In Business':
RUNNING TOWARDS EMPTY
Listen online at the page linked above sometime next week (if you're lucky).
You might also want to look atTrueStory said:Great site Many thanks.<snip>
If fundamentalism of the left has been discarded, so, Ramo argues, has fundamentalism of the right - the so-called Washington consensus. The developing world is now looking to China as an exemplar of a new 'Beijing consensus', deploying capitalism not as an end in its own right - but as a means to an end. It is because privatisation works that you do it; it is because financial deregulation does not that you have to proceed with caution. Above all invest in education.
China, in short, is a world event - a continent on the move with a distinct approach to capitalism. Its achievement is already remarkable, and its impact on a hitherto sluggish world economy entirely welcome. But the Chinese did not reckon on Messrs Bush and Blair and what now looks like the worst post-Second World War foreign policy error.
Torture and abuse of Iraqi prisoners captured the headlines last week, but another and associated drama was playing itself out in the world's oil markets. Iraq has to be internationalised and normalised fast - and oil prices must be managed downwards. The stakes get higher by the week. China could step in; but will it?
Hubbert's Peak goes global
This, as Goldstein points out. is the essence of the bell-shaped curve hypothesis. There is a growing consensus that the crucial turning point in output will probably occur in the second half of this decade, in or around 2007.
The crucial remaining question is: how fast will the gap then grow between supply and demand? All other things being equal, the decline side of the curve will be a mirror image of the initial increase. But of course there will be mitigating factors, such as energy conservation measures or the development of substitutes to oil as a primary energy source, ranging from hydrogen to nuclear to solar.
But the odds seem overwhelming that none of this will happen in time to head off an energy crisis that will dwarf anything we have ever experienced.
Business - Reuters
Oil at 21-Year High on Supply Strains
1 hour, 1 minute ago
By Andrew Mitchell
NEW YORK (Reuters) - Oil prices vaulted to a 21-year high on Friday on fears that supplies, already stretched by world economic expansion, could be hit by an attack on Middle East oil facilities.
U.S. light crude settled up 30 cents at $41.38 a barrel after peaking at $41.56 to set an all-time high in the 21-year history of the New York Mercantile Exchange contract.
London Brent stood 31 cents higher at $38.80 a barrel.
Warnings from a senior Russian official that deliveries from the world's second biggest oil exporter have hit a ceiling after many years of growth underlined the strain on global supply.
"Realistically, the capacity of suppliers does not today meet growing demand in places such as China or India. And you have to take into account the state of affairs in Iraq (news - web sites)," Semyon Vainshtok, head of Russia's oil pipeline monopoly, told Reuters.
Economic expansion in China, bolstered by renewed U.S. growth, has placed world supplies under increasing strain, leaving OPEC (news - web sites), except for its top producer Saudi Arabia, pumping almost flat out to meet demand.
http://news.yahoo.com/news?tmpl=story&u=/nm/20040514/bs_nm/markets_oil_dc_41
Fears of big rises were enhanced last night by a report circulating in the City of London from Barclays Capital bank. "If prices are still above $40 in a month, we would not be surprised to see them stay above that level for the rest of the year. Indeed, if $40 sticks, then $50 becomes threatened," said Barclays oil analyst Paul Horsnell.
http://observer.guardian.co.uk/comment/story/0,6903,1212672,00.html
ACTION OF SPECULATORS
The combination of low stocks and Opec action to keep them low leaves the market exposed to the prospect of sudden price rises if supplies are threatened. This has not gone unnoticed by professional market speculators.
Hedge funds and other speculators betting on the possibility of higher prices have themselves exacerbated price pressure in the market.
http://news.bbc.co.uk/1/hi/business/3708951.stm
mears said:This is also an interesting slice of info.
oil is slightly cheaper today than it was 20, 30, and 50 years ago, and five-times cheaper than 100 years ago. How can gas and oil be cheaper since we've used so much of it over time? Well, thanks to human innovation, we are always finding new sources of oil, while at the same time technology makes it cheaper to drill for it.
http://www.cato.org/dailys/05-13-04.html
Introduction
The population of the world is growing, food production is stagnating, oil is running out, and we are destroying the resource base we depend on for life. These are all related in interlocking ways that are sure to result in a global crisis (already begun) in the easily foreseeable future; the compound crisis of population, food, oil, soil, and water. Politics and business have joined hands to tell us that poverty and famine can be eliminated by economic growth, but economic growth appears to be the engine behind the compound crisis, rather than the panacea that it is being made out to be. This paper shows how conventional economic thought has been mistaken and harmful, how very basic and unquestioned assumptions have led humanity into an ecological impasse, and suggests a method for attempting to avoid the oncoming disaster.
This paper does not mention, or makes only very brief mention of, the 'pollution-type' problems (global warming, ozone layer destruction, acid rain, toxification of the environment by radiation or synthetic chemicals), as these are considered to be a subset of the human-induced ecological crisis described below. It is not intended to deny or lessen the importance of these issues, any one of which could have a serious bearing on the ability of humanity to live harmoniously with the Earth. On the other hand, progress in alleviating the effects of the ecological crisis will almost certainly result in positive trends concerning these problems, as should be clear from the argument.
Also recall that the only time in history when consumption of grain exceeded
production in the U.S.A. was in the drought year of 1988. Exporting a ton of wheat
is equivalent to exporting 1000 tons of water, but with the world more dependent
on the U.S.A. for grain (nearly half of all exports)than it is on Saudi Arabia for oil,
then we had better hope that U.S. agriculture gets its house in order as regards the
use of water.
slaar said:This comment has totally destroyed any faith I might have had that you have any kind of understanding of basic economics.
Adam