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Subject:
Oil
Category: Science > Earth Sciences Asked by: marinibug-ga List Price: $30.00 |
Posted:
26 May 2006 12:04 PDT
Expires: 25 Jun 2006 12:04 PDT Question ID: 732684 |
When will the oil run out? |
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Subject:
Re: Oil
Answered By: tutuzdad-ga on 26 May 2006 13:04 PDT Rated: |
Dear marinibug-ga; Thank you for allowing me to answer your interesting question. The best experts seem to disagree when (or even IF) the world?s supply of oil will be exhausted. Our current technology seems unable to give an accurate estimate of the amount of oil available. If this were the case of course we?d know where all the oil is and there would be no need for oil exploration. Without knowing the extent to which the oil may be limited (if indeed it is limited) there can be no accurate prediction of how long supplies will potentially last before all sources are exhausted. Insignificant amounts of oil will probably be produced in the year 2100 and perhaps even longer. The critical date is when the peak of oil production is reached and the world?s demands can no longer be adequately supplied. From then on, there will be less and less oil to divide. So it is this peak period that is of critical interest. The problem with calculating a time frame for the end of the oil supply is that different known reserves peak at different times and new reserves are discovered with relative frequency. It is the GLOBAL PEAK then that is a matter of debate, and one that will likely never be settled in our lifetime. In terms of what is THOUGHT TO BE KNOWN however, the United States Geological Survey has studied the matter closely and concluded that the world had around 3 trillion barrels of recoverable conventional oil in the ground. Of that, only one-third has been produced which tentatively puts the global peak at some point beyond 2025. Now this doesn?t mean that the oil will be exhausted by this time but it does give us an unofficial idea of when we should feel the impact of shortages. ATLANTA JOURNAL CONSTITUTION Cached document http://64.233.187.104/search?q=cache:4yrtU-4Icz4J:www.ajc.com/opinion/content/opinion/stories/0504edequal.html+%22world%27s+oil+supply%22&hl=en&gl=us&ct=clnk&cd=8 As expected of course the USGS study is disputed. The M. King Hubbart Center for Petroleum Supply Studies, a recognized authority on the subject, places the global peak considerably later at around 2050 taking into account potentially unforeseen sources. They provide a very interesting summary of the known sources around the world and the years in which the supplies are expected to begin their declines: http://www.hubbertpeak.com/campbell/Campbell_02-3.pdf "'How long will oil last?' The short answer is no one knows, but even the oil industry suspects the world peak is now approaching. The industry says it has 40 years of proven reserves at the moment -- but it also said that 30 years ago." AMERICAN SIMIZDAT http://amsam.org/2005/05/race-is-on-to-bottom-of-petroleum-pit.html The best answer then, it seems (which is a guess based on research, and which is the only kind of answer anyone else can provide at this point in our technology) is that substantial supplies of oil will most likely be available, barring any unforeseen circumstances, at least until the year 2100 and in all probability well beyond that. It may cost an arm and a leg by then, but it will probably be around. I hope you find that my answer exceeds your expectations. If you have any questions about my research please post a clarification request prior to rating the answer. Otherwise I welcome your rating and your final comments and I look forward to working with you again in the near future. Thank you for bringing your question to us. Best regards; Tutuzdad-ga ? Google Answers Researcher INFORMATION SOURCES WE WILL NEVER RUN OUT OF OIL http://economics.about.com/cs/macroeconomics/a/run_out_of_oil.htm MSNBC ?How long will the oil last?? http://www.msnbc.msn.com/id/5945678/ OIL CRASH http://www.oilcrash.com/articles/inhertnc.htm SEARCH STRATEGY SEARCH ENGINE USED: Google ://www.google.com SEARCH TERMS USED: Oil Supplies Reserves Available Depleted Exhausted | |
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marinibug-ga
rated this answer:
Well done |
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Subject:
Re: Oil
From: probonopublico-ga on 26 May 2006 21:32 PDT |
So who cares? By then we'll have the fuel cell and loads of alternative energy options. Provided that Global Warming doesn't fry us all up first. Ever Hopeful |
Subject:
Re: Oil
From: myoarin-ga on 27 May 2006 02:47 PDT |
Yes, of course, oil will be much more expensive in the future, as it is now, relative to the past. In the 1970s, when OPEC suddenly raised the price of crude oil (from $2 to $8/barrel!!), it was thought that western economies would collapse. The fact that the projections of proven reserves continue to hover at 40 years is rather convenient for those making them; by then, they will no longer be responsible, and probably forgotten. |
Subject:
Re: Oil
From: frde-ga on 27 May 2006 05:56 PDT |
Funny how we keep finding oil and natural gas. I'm also suspicious of the CO2 merchants, Greenhouses work by cutting out convection. I'm equally suspicious about rising sea levels, when ice melts it contracts, and we all know that the tip of an iceberg is rather smaller than the submerged bit. There seems to be some sort of coalition of 'alarmists'. |
Subject:
Re: Oil
From: marinibug-ga on 27 May 2006 12:58 PDT |
Alternative fuels, including the fuel cell are a fantasy. You cannot continue to produce fleets of automobiles based on these platforms. I would say that the alarmists are realists. |
Subject:
Re: Oil
From: qed100-ga on 27 May 2006 22:53 PDT |
frde-ga said: "Funny how we keep finding oil and natural gas. I'm also suspicious of the CO2 merchants, Greenhouses work by cutting out convection. I'm equally suspicious about rising sea levels, when ice melts it contracts, and we all know that the tip of an iceberg is rather smaller than the submerged bit. There seems to be some sort of coalition of 'alarmists'." What's important about the new discoveries of oil & natural gas isn't just that they are found. What's telling is the *rate* at which they are found. The rate of discovery is declining. It's on the downward side of a normal curve. In the Hubbert model, production approximately maps onto earlier discovery with a separation of some number of years. The average rate of discovery has been on the downswing, implying that production also will diminish similarly. As for your comment about the exact mechanism by which commercial greenhouses work, what's important to the question of global warming isn't how greenhouses work, but rather whether or not CO2, and other gases, serve to trap solar energy. Just because we call them "greenhouse" gases doesn't necessarily mean that global warming is supposed to work exactly the way that flower nurseries do. The only connection between the two is the name. What's important about melting ice isn't the ice that's already floating bouyantly in the ocean. That ice already has displaced as much liquid water as it would were it to melt entirely. Indeed, if the whole North-Pole ice pack were to melt, it wouldn't raise ocean water levels at all. What's important is that ice which has been resting upon land may be melting and emptying into the ocean. This frozen water has not, in geologically recent times, been mixed in with the sea, and so has not been contributing to sea level. If it does melt into the ocean, the water level will necessarily rise. And as for a coalition of alarmists, what's important isn't if they are organised. What's important is if they are or are not correct. |
Subject:
Re: Oil
From: probonopublico-ga on 27 May 2006 23:46 PDT |
They all laughed at Christopher Columbus When he said the world was round They all laughed when Edison recorded sound They all laughed at Wilbur and his brother When they said that man could fly They told Marconi Wireless was a phony It?s the same old cry They laughed at me eschewing oil Said I was going off the boil But along came the Fuel Cell And all the cynics went to Hell |
Subject:
Re: Oil
From: frde-ga on 28 May 2006 06:03 PDT |
@qed100-ga Methane from cows farting is a major source of 'greenhouse gas' as is, incredibly, water vapour. CO2 is perfectly natural and rather necessary. I agree that it is the ice on land that is rather worrying, but I notice that nobody points that out, and I've never seen anyone attempt to calculate that volume of water, and to what extent it is offset by melting icebergs. We are only about 13,000 years out of the last ice age, we could just be seeing a natural cycle. Also, if sea levels do rise significantly, which I rather doubt, there is plenty of land around, and new areas would become inhabitable - it might be an idea snapping up real estate in the Arctic and Antarctica. There are two entirely separate problems, possible rising sea levels which we can't do much about, and the fact that we currently run an oil and natural gas based economy. Possibly we will find another efficient way of transporting energy, petrol (or in the USA gasoline) is very convenient, possibly we will stick with the current model and just manufacture ethanol, not from biomass, but from electricity. I see tidal electricity generation as a real option. Most likely we will have another technological breakthrough - in the late 1800's doom mongerers were saying that London would be 10ft deep in horse manure, they also said that trains would create a vacuum and suffocate the passengers if they travelled over 30 miles per hour. |
Subject:
Re: Oil
From: qed100-ga on 28 May 2006 19:55 PDT |
"Methane from cows farting is a major source of 'greenhouse gas' as is, incredibly, water vapour. CO2 is perfectly natural and rather necessary." Carbon dioxide in the atmosphere is natural & necessary, up to a point. Gaseous oxygen is natural & necessary, up to a point. I need oxygen. But it's also a characteristically poisonous gas. If I were to breath only pure oxygen at sea level pressure for an extended period, shall we say a week or so, then it'd become detrimental to my health. Being natural & necessary to within some interval of tolerance isn't the same as being increasingly good with indefinitely increasing abundance. CO2 plays a role in Earth's bio-system. We need it in some relative abundance. But too much can be a bad thing. Go get yourself a can of sprayable whipped-cream. Put the business end in your mouth and squeeze. Along with a shot of whipped-cream, you'll also get a large dose of carbon dioxide gas, which will become the predominant component of the air you're breathing. Do this, then once you've regained consciousness, tell me that an overabundance of CO2 is a good thing. Now of course, I'm not saying that CO2 is in any danger of accumulating to such a concentration in the greater atmosphere to poison us directly. But it can be a danger in some other way. CO2 is a greenhouse gas. This isn't baseless guesswork; empirical data are in hand which tell the tale of the interaction between CO2 & light energy. Too much CO2 would indeed be a disaster. But as you say, perhaps cows contribute more greenhouse gases to the air than any current source of CO2. Indeed, all the mammals on Earth fart methane. (They also exhale plenty of CO2.) Do you mean to say by this that, since there are worse contributors to global warming than CO2, that CO2 can be ignored? If I am suffering from two or three gaping, bleeding wounds, can I just ignore the smaller of them? It so happens that CO2 is so much a greenhouse gas that it plays an important role in maintaining the comfortable temperatures here on Earth. Were there *no* global warming, we wouldn't be here. Earth would be a frozen ball. Were there too much, then we also would be absent, owing to the excessive heat. What we need is just the right abundance of greenhouse gases. Too much can be our death. "I agree that it is the ice on land that is rather worrying, but I notice that nobody points that out, and I've never seen anyone attempt to calculate that volume of water, and to what extent it is offset by melting icebergs. [...] Also, if sea levels do rise significantly, which I rather doubt, there is plenty of land around, and new areas would become inhabitable - it might be an idea snapping up real estate in the Arctic and Antarctica." What makes you think that no one ever points out the role of melting land-based ice? What makes you think no one has ever ventured a computed estimate of the volume of that ice? It gets pointed out all the time; that's the ice which is cited to threaten rising sea levels. The volume of that meltwater is calculated. That's how experts can estimate how much deeper the oceans might become. Also once again, the melting of icebergs will have no effect on sea level. It will not ?offset? the contribution by other melting ice. As for the estimate itself, it's figured that the oceans could deepen by perhaps one meter. That may not sound like a lot. It will leave a tremendous area of land away from the coastlines. The problem isn't *simply* that sea level will rise. Even if the increased depth of the ocean is no problem in itself, the fact remains that the ice melts for a reason: global warming. The warming is the real threat. "We are only about 13,000 years out of the last ice age, we could just be seeing a natural cycle." Yes, we could be witnessing a non-manmade cycle in Earth's climate. But on the other hand, we might not. Wouldn't you care to know which is the case? I certainly would. If it turns out that warming is being induce by human behavior, we then can take control of the situation ourselves by choosing to modify our behavior. And what if it is just another natural cycle? Does this mean that global warming is of no concern to us? If we can pin the blame on Mother Nature, does this mean that it's no threat to us? We do need to know what's happening with the climate. "There are two entirely separate problems, possible rising sea levels which we can't do much about, and the fact that we currently run an oil and natural gas based economy. Possibly we will find another efficient way of transporting energy, petrol (or in the USA gasoline) is very convenient, possibly we will stick with the current model and just manufacture ethanol, not from biomass, but from electricity. I see tidal electricity generation as a real option. Most likely we will have another technological breakthrough - in the late 1800's doom mongerers were saying that London would be 10ft deep in horse manure, they also said that trains would create a vacuum and suffocate the passengers if they travelled over 30 miles per hour." Once again, whether or not we can do anything about rising sea levels depends upon what our role is in the mechanics of it. If warming is due to our behavior, then we can conceivably change our behavior. And also once again, even if we aren?t the culprits, we still need to understand the process. We need to know what to expect. Coastal cities tend to be also rather important cities. If their ports are in the process of being altered, we need to make plans to change how we do business. And the current problem with petroleum as stored energy has little to do with how we?re transporting it. The problem facing people is the eventual diminishment & loss of that energy source. Furthermore, the solution isn?t so simple as to ?just make ethanol?. I haven?t the slightest idea how you think it can be produced ?with electricity?. But suppose hypothetically that it can be. We just generate lots of electricity, and presto, we have ethanol. Where are you proposing we get all the electricity? Generating electric current requires an energy input. It?s an energy conversion. Yet what we are being faced with is an energy shortage. For an energy source to be useful to us, it needs to be ?free? to us. Most of the energy required to store potential energy needs to have been invested by someone other than us. (For example, the Sun.) But it?s ineffective to just chant the mantra, "There?ll be an energy breakthrough..." Maybe there will be one. But on the other hand, there hasn?t been one. What makes you think there will be one? Are you willing to bet our whole future on the fantasy of a miracle breakthrough, just in time? Yet, as long as you?re just sitting around waiting for someone else to cough it up for you, then that?s precisely what it is, a fantasy. I mean, have you even hired a genius or two to do this job, coming up with a new source of energy? If you haven?t hired anyone, and aren?t doing it yourself, then its accomplishment isn?t to be rationally expected. Stock criticisms such as, "Back in the 19th century people erroneously thought..." isn?t equivalent to guiding the way to an energy source that?s up to the task of supporting several thousand-million people in comfort & health. Only actually understanding the world in which we find ourselves stands a chance of doing this. |
Subject:
Re: Oil
From: frde-ga on 29 May 2006 06:03 PDT |
@qed100-ga Water vapour is another 'greenhouse' gas, and there is lots of it, but what is more serious is that ice reflects light and less ice means less reflection. I've seen nothing before on calculation of the volume of water from ice covered land surfaces, you may have seen it, but I've seen absolutely no attempts at quantification. Personally I reckon that it is probably part of a cycle, and that we have little to do with it. Normally our pollution is pretty local, we tend to poison ourselves. The sensible thing would be to avoid building on low lying areas, something we in the UK have a penchant for doing. On the energy side, there is ample tidal power, the surplus could be pushed 'uphill' so it is controlable, from that one can generate electricity, from electricity one can generate Hydrogen and from that one can produce any number of cocktails that fit in with our current energy distribution system. That stuff is old technology, we should be getting on and securing our posteriors rather than running around like beheaded chickens. We'll probably have some breakthroughs, Nuclear Fusion is on the horizon, regardless we are swimming in a sea of energy. Ambient temperature is potential energy. If we were sensible we would assume the worst case and prepare for it. As an aside, the stuff about us running out of oil and gas is pretty dubious, a perception of a shortage keeps the price up, so there is little incentive to publicize new finds. Also, crying wolf keeps the price up. |
Subject:
Re: Oil
From: qed100-ga on 29 May 2006 11:29 PDT |
"As an aside, the stuff about us running out of oil and gas is pretty dubious, a perception of a shortage keeps the price up, so there is little incentive to publicize new finds. Also, crying wolf keeps the price up." Are you willing to wager your childrens' & great-granchildrens' futures on this? I'm not. It's always unwise to project today's abundances onto the indefinite future. There is only a finite amount of anything you'd care to mention within our reach. We will run out of oil. You say that there's plenty of energy available to us. There may be lots of useable alternative energy. But what are *you* doing to make this a reality? What is *your* strategy to harness non-petroleum energy? |
Subject:
Re: Oil
From: frde-ga on 30 May 2006 02:06 PDT |
Sorry, I did not make myself clear I believe that we should be following two paths simultaneously: 1) Using existing technology to generate energy a) use of tidal power for electricity generation b) incinerating refuse (cleanly) rather than landfill c) reluctantly, building Nuclear plants d) converting electricity into conventional fuel substitutes 2) Investing heavily in research into new technology a) getting in on the French Nuclear Fusion project b) funding research into 'offbeat' alternatives c) investigating yeast + algae to produce ethanol d) investigating tapping magma e) investigating solar 'farms' in hot climates |
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