|
|
|
#1
|
|||
|
|||
|
Let's use up all the world's oil ASAP
Because the sooner we use it up, the sooner we'll be forced to develop alternative energy.
Tell me why I'm wrong. |
| Advertisements | |
|
|
|
|
#2
|
|||
|
|||
|
You probably want to explain a) why anyone using petroleum at all annoys you so much and b) which alternative energy sources you are talking about and why you think they are more desirable for their purpose than the use of petroleum.
Anyway, sez here that oil provides only 3% of the energy used to generate electricity in the US. The top three sources of energy for electricity generation are coal, nucular and natural gas. Looks like alternative energy sources already are carrying the load in that sector.So, what's the problem, exactly?
__________________
I love you, El_Kabong |
|
#3
|
|||
|
|||
|
Whats the rush? I guess I don't get it.
-XT |
|
#4
|
|||
|
|||
|
Yup, use it up, then come up with the alternative. Sounds like a plan.
How's bout this? Let's develop the new technology so it costs less to use than generate? i.e. wind, solar, hamster-wheels. Meanwhile, we start aggressively going after the resources we know exist and know how to efficiently convert to useable energy. Environmental impact? Well, if we can suddenly switch to "alternative" fuels in a few years, certainly the Caribou/titmouse/Spotted Owl/etc coalition can adapt after thousands of year's of practice? Nuclear energy. That's what you're looking for, it seems. I'm honestly hoping someday I have my own reactor charging my car and powering the house. Virtually unlimited power, non-polluting and very safe. Compare deaths attributed to oil, coal and nuclear production. But wind sounds good. Persue that one. |
|
#5
|
|||
|
|||
|
The problem with nuclear technology, of course, is that while the risk of an accident is small, if one does occur it's pretty catastrophic.
(Of course, it's the same with flying, and plenty of people decided that while you might have a chance of dying in a spectacular plane crash, it's better than driving 10+ hours to go to Disney or that Big Important Business Meeting.)
__________________
Shameless Self Promotion |
|
#6
|
|||
|
|||
|
Care to cite the numbers of deaths from Three Mile Island? Or even Chernobyl? There was a recent report (reported on ABC News IIRC, or maybe CNN but no link) that stated the death toll was miniscule compared to what was reported at the time as catastrophic.
I'm not one for buying into conspiracies started by "Big Oil" but if there ever was one, it's that nuclear power is dangerous. Again, care to cite numbers of deaths attributed to oil exploration/production and deaths from nuclear power plants? |
|
#7
|
|||
|
|||
|
Quote:
Quote:
-XT |
|
#8
|
|||
|
|||
|
Quote:
Chernobyl was as bad as any US accident could realistically ever be. In fact it was worse. Yet the total death toll was less than 50 individuals . 50 indivuslas over 20 years is fewer than the number of people killed by the coal electricity industry last year alone. Based on that it appears that even if we do come up snake eyes it isn't as potentially bad as continuing to use coal. Quote:
|
|
#9
|
|||
|
|||
|
Of course there are risks. There are risks in having major oil tankers pulling into harbors. There are risks of driving to work.
It comes down to risk outweighing benefit. I'm not buying into the "sky is falling" theory of the anti-nuke crowd. (And I'm not implying you are) I understand the catastophic aftermath of a major nuclear meltdown. The problem is, it is all theory. We still haven't seen it happen even with real life reactor malfunctions. If we're going Chicken Little, let's mention the chance of the goose population being decimated by flying int windmills. |
|
#10
|
|||
|
|||
|
Quote:
Coal and natural gas are not "alternative energy sources." They are nonrenewable, CO2-emitting fossil fuels, just like oil.
|
|
#11
|
|||
|
|||
|
Quote:
"The problem with nuclear technology, of course, is that while the likelihood of an accident is small, if one does occur it's pretty catastrophic"... and therefore the risk is high. Risk is mitigated by decreasing the likelihood of an event or decreasing the harm arising from that event. A risk assessment is a reality check. It is gathering all the information on the likelihood and consequences of a harm event occuring and working out the most practicable (i.e. maximum benefit for resources) way of managing the risk. |
|
#12
|
|||
|
|||
|
Quote:
|
|
#13
|
|||
|
|||
|
Quote:
What's the point of developing alternative energy, exactly, if not to avert possible disaster? |
|
#14
|
|||
|
|||
|
Quote:
|
|
#15
|
|||
|
|||
|
Quote:
b) Mostly nuclear. Quote:
|
|
#16
|
|||
|
|||
|
Quote:
Sorry to ask these things, but I remain unconvinced that you have the slightest idea what you are talking about here. Quote:
|
|
#17
|
|||
|
|||
|
Using up all the fossil fuels quickly means dumping lots of greenhouse gases into the atmosphere quickly - this might actually be worse than dumping the same amount more slowly.
|
|
#18
|
|||
|
|||
|
Don't forget that you can't go developing alternative energy sources unless you have energy to do it. My great worry in this is that by the time we are up against the wall we will not have enough resources to last us through the development stages and a good portion of the world is going to go pre-industrial for a hundred years or so.
Remember, we currently have NO OPTIONS. Coal, oil and natural gas all have limits, with the limits on oil coming fast. Though most people do not realize it, there are limits on nuclear as well, it is just that at our current usage levels they are very far off. If we switch to hydrogen as an energy storage system with the initial investment of energy provided by nuclear, that limit is going to come up mighty fast. Though sources such as thermal, tidal, hydro, and wind are theoretically renewable (on the scale of the human species), unbelievable innovations would be necessary for them to provide enough power for us. The only real salvation I can see is fusion, and no one can seem to make it work yet. What we need to make it work is exactly what we are going to get; a gradual and constant decline in available resources with increasing demand. This will make for a very lean time with a great deal of international conflict resulting, but hopefully the pressure will increase fast enough that we can catch humanity. The scary thing is that we only get one chance. If we don't come up with replacement energy sources before the current ones run out, I don't believe we will ever have enough easily available energy to build society to the level that they can be developed. |
|
#19
|
|||
|
|||
|
Let's get everyone infected with HIV, herpes, and cancer ASAP. Because the sooner we do, the sooner we'll be forced to develop cures.
Let's cut down all the world's trees and turn them into toilet paper ASAP. Because the sooner we do, the sooner we'll be forced to get serious about recycling. Let's run this argument into the ground ASAP. Because the sooner we do, the sooner we'll be forced to come up with better ideas. |
|
#20
|
|||
|
|||
|
You know, it's entirely within the realm of possibility that there are no alternative energies that will sustain our current lifestyle. Something we can do now is plan transit-friendly cities and build energy effcient housing.
|
|
#21
|
|||
|
|||
|
Quote:
Quote:
|
|
#22
|
|||
|
|||
|
Quote:
|
|
#23
|
|||
|
|||
|
Quote:
I agree that this is still fairly small potatoes compared to the estimates for how many die from pollution from coal and other fossil fuels. |
|
#24
|
|||||
|
|||||
|
Quote:
Quote:
Consider that the major energy source in the world today remains coal. The world has massive amounts of coal. There is so much coal that we haven’t even looked very hard to find out how much coal there is. There is so much coal that at the moment many places won’t touch coal if there is more than about 50 metres of soil over the top of it, it’s just not worth the effort to remove the overburden. Yet we know that there is coal thousands of metres under the ground. And there are still paces where coal lies ion the surface and can be picked up by hand. Consider that the world has enough uranium to provide energy for the next 500 years at least. Also consider that deep coal mining and nuclear power are not developing technologies. They have been solid technologies for 200 and 50 years respectively. So with all those facts in mind can you explain how we could ever come up against the wall so rapidly that we will have to abandon industry? To me the whole idea makes no sense. Nuclear power is very nearly competitive economically with coal right now. In many places it is more competitive, and every year advances in technology make it cheaper. At the same time coal energy will become more expensive as we are forced to resort to ever deeper, dirtier and more remote coal deposits. At some point, when coal power is still less than 25% as expensive as it is today, nuclear energy will become the preferred economic option. So can you explain why, at or very near that point, we won’t switch to nuclear power for purely economic reasons? Not because we are anywhere near running out of coal, we will still have hundreds of years of coal left. I simply cannot see how we could ever even hit a bump when it comes to energy transfer. The competitiveness of nuclear is simply to close to coal to make that possible. I certainly can’t see any scenario that doesn’t involve spacemen that would lead to us having so little coal left that we couldn’t build infinite nuclear reactors. Perhaps you could explain how you think this could ever happen. Quote:
Quote:
Quote:
This is a tautology. Of course if we don’t find a replacement for the energy needed to sustain a developed society then we won’t be able to sustain a developed society. Hardly profound. The point to realise is that we have sufficient coal for at least 100 years, and we haven’t even looked for coal resources yet. We have sufficient fissionable material for another 500 years beyond that. So that gives us 600 years with current technology. Worrying about what energy sources we might be using in 2600 is as ridiculous as a woman in 1400 speculating about the world of today. That world will be just as incomprehensible to us now as our world would be to her. In short the 600 years we have ATM is for all practical purposes an infinite amount of time. Maybe if technological growth showed any signs of stalling we could become concerned. But it hasn’t, I can see no need for concern on these grounds. |
|
#25
|
|||
|
|||
|
Quote:
Realistically, we're not looking for a thermodynamically perfect process, but rather one that can be maintained indefinitely for a "long time", that being, ideally, until the planet or the sun are expected to be worn out. |
|
#26
|
|||
|
|||
|
Quote:
Quote:
Sorry, sir, but I do not find your ideas particularly intriguing and I must decline to suscribe to your newsletter. |
|
#27
|
|||
|
|||
|
Blake- that is one of the most well reasoned posts I have read on this board (In my short time here). As Blake said, there is coal everywhere. And, we've known how to turn it into transport fuel since WW II. Furthermore, the world has quite a bit of natural gas as well. Much of it is stranded, but as LNG tech becomes cheaper, it won't be stranded for long. We also know how to turn natural gas into a clean diesel. Might be a little pricey, but it's already being done. That doesn't even scratch the surface of gas hydrates, which aren't feasible now, but would anybody want to bet me we could utilize them in oh say 200 years, a few centuries before coal is tapped? How's about nuclear? We could look for Uranium harder if need be, and, as I understand, other fuel can be used for a reactor (I am not a nuclear expert). Furthermore, how about a breeder reactor? I'll also bet we get those working in the next few centuries. We can already use electricity (from nuclear or what-have-you) for transportation. Trains have been doing it for quite sometime.
See, none of this stuff (except the gas hydrates) requires anything new. We can already do it. Even Sven- what do you mean we won't be able to sustain current lifestyle? Give me a realistic scenario of how that might happen. I think myself and others have shown plenty of options that already exist as a substitute for oil everywhere it's currently used. And that's if we stopped working today and took a break. After oil is gone, there will still be plenty of natural gas. After gas, coal, after coal, uranium. And fusion? Who knows? Considering 66 years after people said powered flight was impossible they watched a guy walk on the moon, I'm not going to bet against human ingenuity. |
|
#28
|
|||
|
|||
|
Quote:
|
|
#29
|
|||
|
|||
|
Quote:
|
|
#30
|
|||
|
|||
|
Quote:
Quote:
|
|
#31
|
|||
|
|||
|
Quote:
|
|
#32
|
|||
|
|||
|
Quote:
|
|
#33
|
|||
|
|||
|
Quote:
|
|
#34
|
|||
|
|||
|
Quote:
|
|
#35
|
|||
|
|||
|
Quote:
|
|
#36
|
|||
|
|||
|
Blake, truly an excellent post. I have never seen a number like 500 years of available nuclear fuel, so I believe you may be referring to the amount of time it would take to use up the known sources of are at our current usage levels. Even assuming that power requirements do not dramatically increase, if as you suspect, we will become more reliant on nuclear that means usage rates go up and how long until we run out of fuel goes down.
Currently nuclear on provides about 16% of the worlds power. This, as I read the article, is just for generator plants and does not include many key sources of power, such as home heating gas or oil and fuel for vehicles. If there were reductions in the availability of these resources then nuclear and coal would be required to fill the gap either through hydrogen production, electically powered vehicles or artificial oil from coal. This would dramatically increase nuclear fuel usage and reduce the amount of time available resources would last. This was what I was referring to when mentioning the short time that nuclear would be able to meet our needs. However, I have discovered further information that seems to contradict me. Here it says that we likely have far more uranium out there than we know about. Unlike oil where we have been putting forth huge effort to discover further sources there has been little attempt to locate new veins of uranium, sugeesting that much may be left to find. That, which I was unaware of, makes nuclear look a lot better. Quote:
As to the rest of the Blake's post, I'm working on it. Though, the far greater abundance of nuclear fuel alone than I knew of may be enough to kill the theory. |
|
#37
|
|||
|
|||
|
Quote:
1. It is possible to convert coal to gasoline (the Nazis worked out the process); 2. But apparently you get much less energy out of coal if you convert it to gasoline than you get if you burn it as coal -- because of the energy required by the conversion process itself. (That's also a problem with gasohol, BTW -- the energy invested into raising the crops is more than you get by burning the alcohol.) 3. That makes coal-derived gasoline (or crop-derived gasohol) a less-than-optimal choice, to be resorted to only if there's no other way to get gasoline and no way to make cars that run on anything else. In other words, burning coal-derived gasoline in our cars is, to put it mildly, a clear sign of desperation. T_SQUARE said, "Doesn't any energy process involve a net energy loss as you re-order the energy?" In which s/he seems to be simply trying to wave aside the above as a problem. But it's irrelevant. The fact remains that some ways of "re-ordering the energy" are less efficient than others. |
|
#38
|
|||
|
|||
|
Yes- Fischer-Tropsch is not the most efficient way to make transport fuel right now, which is why we don't do it. But just because the conversion takes some energy, doesn't mean the concept is crack-pot. Burning regular coal is all well and good, but darned inconvenient for transportation, unless you can convince your wife to man the shovel in the back of the mini van. There is nothing wrong with spending some energy to make it more useful. A laser, for example, is pretty inefficient, I would imagine. However, a camp fire isn't too useful for eye surgery. You use energy, a lot of energy, to re-order it to make it more convenient. I'm not saying we should be making synthetic motor fuel now, far from it in fact. But the option is on the table and it is viable.
I'm not sure we necessarily disagree. |
|
#39
|
|||
|
|||
|
Quote:
Quote:
Quote:
Then what the hell did you mean? That's exactly what you said. Don't expect me to decipher your OP and then tell me the interpretation is worng with no further clarification.
|
|
#40
|
|||
|
|||
|
Quote:
|
|
#41
|
|||
|
|||
|
Quote:
|
|
#42
|
|||
|
|||
|
Quote:
The 500 years figure is just a very conservative estimate to highlight how futile it is to worry about energy sources. 500 years is an infinite time period for all practical purposes. |
|
#43
|
|||
|
|||
|
Actually, I'm under the impression an alternate form of fuel (alcohol) was invented for vehicles a long time ago. It's more potent and burns clean. The gas companies bought it, locked it up, and threw away the key.
We shouldn't even be using oil anymore, that's so early 1900's. We're more advanced than that. But companies who profit from it are going to milk it (and our plantet) until it's dry. You know what? The longer I'm in school the more I'm realizing how much bullshit flies around this country. The FDA, the president, funding for genetic research (where it goes, more specifically), corporations like Wal-Mart, etc. Makes me feel all warm and hateful inside. |
|
#44
|
|||
|
|||
|
Oh yes, one more note on the fuel thing.
There's an abundance of Methane Hydrate frozen in blobs on the sea floor all over the earth. These blobs have been around since prehistoric times, and are thought to have been the ending of one period of life (can't remember which period it was, will look it up if anyone cares) when most of them exploded and replaced most of the earth's oxygen with carbon dioxide. Nearly everything probably suffocated to death. Cool, huh? Now companies want to find a way to harness this explosive chemical and use it for fuel. Just what we need, more explosions. Hurray for humanity. |
|
#45
|
|||
|
|||
|
Quote:
Right now many people can go down to the local gas station and buy E85 (which is 85% alcohol) to fuel their automobile, assuming it is designed for it. Of course, you get less mileage, as ethanoll contains less energy per gallon than gasoline, and most of recent studies show that producing ethanol from corn, as done in the US, is not energy economic to do; ethanol in fuel only exist because of large government subsidies. |
|
#46
|
|||
|
|||
|
Quote:
Firstly, the 'explosive chemical' you are referring to is nothing more than a frozen compound of methane and water. Methane (CH4) is the main constituent of natural gas, which, last I checked, is safely handled as a fuel all over the world with, granted, the occasional explosion when mishandled. The point is, once the methane is separated from the water, it is neither more nor less difficult to handle than any other natural gas resource. Secondly, if you are referring to one possible cause put forward recently for a Jurassic extinction event, methane hydrates did not "explode"; what may have happened is that some of it effectively melted (due to increased ocean temperatures related to greenhouse gas effects). The methane released in this way did not ignite, but apparently did scavenge much of the oxygen from ocean waters, resulting in the loss of most sea life. An interesting question might be whether current warming effects might trigger another such event, and of course the current practice of burning of methane as fuel has some effect on this warming trend, but it seems highly unlikely indeed that extraction of hydrates in a few locations through some kind of mining or drilling process would directly result in such a catastrophic global release of raw methane. As for your other post: Quote:
|
|
#47
|
|||
|
|||
|
Quote:
Quote:
Quote:
-XT p.s. 'profit' isn't a bad word.
|
|
#48
|
|||
|
|||
|
Quote:
Quote:
Quote:
|
|
#49
|
|||
|
|||
|
Quote:
|
|
#50
|
|||
|
|||
|
Yes, lets use up all the oil, and find an alternative.
One problem with that. Look around the room you are in. Imagine that everything made from plastics is gone. What is left? Oil is good for more than just fuel. |
![]() |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|