4 Tons Of Plants per Mile to Ride In Your Car
Roland Piquepaille writes "As you might know, I enjoy big numbers. So it's just natural that I was attracted by this news release from the University of Utah, "Bad Mileage: 98 tons of plants per gallon." "A staggering 98 tons of prehistoric, buried plant material is required to produce each gallon of gasoline we burn in our cars, SUVs, trucks and other vehicles." For a reasonably efficient car, riding 25 miles per gallon, this translates to 4 tons of prehistoric plants per mile, or more than two tons per kilometer. The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars. Even if these numbers are too large, this still makes you think about how inefficient our cars are. This analysis describes the calculations and contains other details about the research paper which will be published in November by Climate Change."
25 mpg for a reasonable car!!!! Ah to live in the US where petrol is cheap and fuel economy doesn't matter.
The man with the fat arse.
This space for rent.
"Building more roads to combat traffic congestion is like buying a bigger belt to combat obesity"
"There is no teacher but the enemy."-Mazer Rackham
and every time I eat a burger, 2 tons of modern plants died to make that cow (or something like that).
We all know the cars burn too much energy. how long of a period were plants compressed for oil? thus, how long until we run out?
That plant material is the source of the oil reserves. I do not think there were ever enough plant mass ever to give us the amount of oil we have presently. FP
Internal combustion engines have ALWAYS been inefficient. There have been attempts to make them more efficient, but there has NEVER been an engine based on gasoline that has exceeded even 35%. Even rotary engines are very poor producers of energy to a set of tires. Just the facts of life.
Anyone for Hydrogen?
Hmm.. I've always wondered if we'd run out of oil (reasonably priced.. when the price is fixed) in my lifetime... some say yes... I really don't care about having a car.. it's convenient... but I do care about plastics and other poly-things that we get from oil-based resources... how long could humanity go without?
(1st sig) If this were a snappy sig, you'd be reading it right now. (2nd sig) I'm a karma whore. >Insert FUD here
still makes you think about how inefficient our cars are.
I think its more like how inefficient mother nature is. Geez lady, can't you just spit out hydrogen?
98 tons of plant material for c.a. 25 miles? Damn! Have you seen a pound of carrots pushing any vehicle a foot?
Logic, macros, and more
25 miles per gallon is many things, but reasonably efficient isn't one of them.
Rob.
Isn't most of the original biomass water that does not end up in the oil/coal/gas deposits? Or am I missing something.
I just don't quite see the point of the guy who did the calculations/report... and I did read the article. This is just throwing around big meaningless numbers. At least Ig Nobel candidate material is train-wreck-interesting.
Ok... lessee... 98 tons of plants/gallon... hmmm... I'll bet that we could get more efficient energy extraction from flannel-clad, tree-hugging lesbians (not that there's anything wrong that).
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
I think it shows how inefficient mother nature is. Stupid nature, not forseeing our need to drive Hummers and Ford Excursions!
Silly humans...
Wise men say, "Forgiveness is divine, but never pay full price for late pizza."
25 mpg for a *reasonably* efficient car??!!!
I normally get around 45 mpg in my car, which is just a bog standard Vauxhall Astra, nothing particularly fuel efficient.
Good heavens, the wonders having a heavy fuel-tax will force car manufacturers to...
Why do we care about prehistoric plants that turned into underground petrochemical deposits millions for years ago. I agree that cars are ridiculously inefficient, but underground oil is not one of the natural features I am worried about being disturbed. Above-ground pollution, oil spills, global warming, yes, but why cry for rotten prehistoric plants?
John
Patriotism is the conviction that your country is superior to all others because you were born there. (GBS)
Its even better than that! Internal combustion engines are only about 25% efficient, so for every ten gallons of gas you put into your car, only 2.5 gallons are actually used to propel you forward, the rest is just used to heat up the engine and exhaust.
The day Bill Gates says Windows sucks and Linux is really the way to go.
That certainly explains the foul smell I can't get out of the seats...
Stop by my site where I write about ERP systems & more
I read an interesting article at Discover.com. Technological savvy could turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year.
I think this is a huge step in the right direction, I'll be very interested to see what happens once the plant is online.
10: PRINT "Everything old is new again."
20: GOTO 10
Anyone want to take a stab at how much a horse eats per mile? I guess to be fair, you'd probably want to multiply it by 4 at least. Even then it's only 4 horsepower versus like 100-150 in your standard economy car.
"The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars."
If there's 600,000,000 of plants and plant material out there to burn in fossil fuels...and we burn a years worth of it a day. And you divide 600 million by 365...that gives us 1643835 years worth of fossil fuels.
A much more optomistic projection that even the Skeptical Environmentalist!
I'm going to go drive my 5.7 liter Chevy truck around then just for the hell of it.
Wouldn't it be interesting to see how much bio material is needed to give a person energy to pedal a bicycle for a mile. Methinks that it would be in the order of grams rather than tons.
In a related story, the University of Utah pointed out that modern desktop computer processes consume roughly 14 tons per hour of running SETI, a popular screen saver. "At some point, you have to wonder just how important it is to find alien life," said Professor Ima T. Hugger, "when you're killing so much life here on our own planet just to find out. One little green man simply isn't worth twenty redwood trees - try shutting down your machine once in a while, or switch to that nice screen saver with the rotating Windows logo."
When asked about the energy required to create his polyester pants, Hugger refused comment.
What's your damage, Heather?
I agree that regular gas-powered cars could be made more efficient, but don't the numbers above point more towards the "inefficiency" of the prehistoric plants --> crude oil deposits process?
In Soviet Rush, today's Tom Sawyer gets high on you.
And 98 million years to accumulate it. Your point?
Here's a starter link: Link
--- Ban humanity.
Does it say how many tons of plants have existed in the last billion years or so?
I bet it's a lot.
I just bought a Honda Civic Hybrid, and yes I'm getting the 40-odd MPG. It does so by basicly recycling the enegry expelled. Rather than lose energy in normal cruising conditions and breaking, it stores it in the battery for future use. You use the energy from the battery to power the engine, and you recover a bit of that back.
I know that it still uses gas as its primary source, and that due to thermodynamics I'm never going to be able to recycle all the energy, but the system, I think, is a step to making cars more efficent.
Now, if only Detroit would make such a car, but that's another topic...
To write a haiku - all you need is the correct - number of syli...
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
Actually I've been wondering how can all these tons of oil can even exist underground. The whole process under which oil is generated, makes the picture impossible IMHO.
It's just a conspiracy I say. Bring in the hydrogen.
I don't see a problem here. Plants aren't that big, and i'm sure humans are worth more in fuel than a few plants.
So the few people that survive will have plenty of dead humans to use with the amount of polution we use...
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
I think the inefficient part in the process is the break down of the plant into hydrocarbons. One gallon of gas comes from just a few gallons of oil. So, the weak link isn't the car.
I do not fear computers. I fear the lack of them. Isaac Asimov (1920 - 1992)
a few years ago, my thermodynamics professor at ohio state who was very in to the debate on the "oil crisis" we are in, bluntly stated that it was not this prehistoric biodegrading plant/animal matter that created oil. Since I can't remember his name or website, this isn't much use.
"My car gets fourty rods to the hogs head and that's the way I likes it." - Grandpa Simpson
Perhaps yet another reason to move away from oil based car engines.
One gallon of oil weighs 3.26 kilograms.
Last time I checked, kilograms were a measure of mass, not weight.
only about one-10,750th of the original carbon in ancient plant material actually ends up as oil
The rest of it has to go somewhere. Coal maybe? It just doesn't disappear.
I would like a little more basis from where he pulled these numbers.
25 mpg
So that means I just crammed 1274 tons of biomass into my gas tank, I feel so empowered.
My car is a vegetarian?
--Still waiting for that awsome sig to just leap out at me..--
So it takes 98 tons of biomass to make a gallon of gas. What happens to the rest?
About half of a gallon of crude oil can be made into gas. The rest is made into kerosene, deisel oil, motor oil, asphalt, plastics, and other stuff. Basically all of any gallon of oil extracted is made into something useful.
The other 97.99 tons never leaves the ground. Its not as if we chopped down 98 tons of living trees. The plants are gone, and the oil is there, whether we use it or not. This doesn't show our inefficiency at using plants, but Nature's inefficiency at making oil out of plants.
INAG (I am not a geologist) but my understanding is that the theory that oil came from old plants and animals is today considered wrong. Instead it is produced by ultra high temperature bacteria energized by heat from the earths core.
PS, if you really care about the environment - go nuclear
PSS, that is not a troll
OK, so how many tons of hydrogen had to be fused in order to make a gallon of gas - don't forget that fusion is not 100% effecient, so it takes many kilotons of hydrogen to make a ton of carbon (the rest being pissed off as heat, as helium/lithium, etc).
/bullshit mode off
Also factor in the tons of carbon that never leave the star that made it.
Now, what does ANY OF THIS have to do with ANYTHING?
OK, you want to critize our current usage of mineral oil vs. making biodiesel, great. But let's try to compare apples with some form of fruit, not compare apples to rocks!
www.eFax.com are spammers
But also about inefficiency of natural fossil fuels.
Key Fact.
Since only about one-10,750th of the original carbon in ancient plant material actually ends up as oil, multiply 4.14 kilograms by 10,750 to get roughly 44,500 kilograms of carbon in ancient plant matter to make a gallon of gas.
google cache of old-news biofuel breakthrough
Note they are claiming they can eliminate dependance on oil importation with agricultural waste alone. No other cultivation necessary.
And the point is. Once we use the biofuels, we are in the carbon cycle. No more pumping carbon out of the earth.
-- perl -e'print pack"H*","6e656d6f406d38792e6f7267"'
Typically I bike commute, but when I need to drive I use my car which runs on biodiesel (it is a VW Jetta TDI).
Biodiesel is produced from vegetable oil crops such as soy or canola. It is also currently being produced using waste vegetable oil (mostly frier oil from fast food resturants). There is research showing that algae crops would be an even more effective crop for producing the fuel. 1 acre of cropland produces about 100 gallons of fuel currently. My car gets about 40 miles to the gallon for city driving (50 on the highway) too.
burn the bean!
Gee, that means 1,000,000 years of plants will only last us 2,737 years! And we all know the prehistoric period wasn't measured in hundreds of millions of years!
[For the record, I support Hydrogen so we can tell the Arabs and Environmentists to go jump in a lake and quit bugging me.]
someone ought to calculate the increase in fuel efficiency we'd gain in the U.S. if we weren't a nation of over-weight Big Mac eaters.
Logic, macros, and more
While I do agree that currently vehicles are inefficient and that we are eventually heading towards insufficiencies in our supplies of fossil-fuel, one must also consider the vegetation of the eras that became the fossil fuels of today. From what I can gather, many plants were rather humongous in comparison to today. I mean, if say during the period of dinosaurs, plants had to be big enough to feed a pod of 10-15 meter behemoths, I'd say we had a lot of vegetation going at that time. Forget how many plants it takes to power a car, how much did it take to fuel a dinosaur?
And besides, aren't fossil-fuels the product of not only plants, but animal-life as well? I could be wrong on this one, but I think everything was part of the good ol' life-to-petrol cycle.
rods to the hogshead was bad enough, now we got Plant ton/(km|mi)!? WHEN WILL IT END!?
Your hair look like poop, Bob! - Wanker.
Yep, our cars are inefficient. You know it, I know it, your neighbor's pet cat knows it. Some cars (SUVs) are much worse than others... but even if you buy a Dodge Colt that can get 45 miles per gallon on the highway you've still got an engine that's simply not realizing maximum efficiency. I for one would welcome a better solution -- something a great deal more fuel-efficient, more environment friendly and less costly to maintain (Oil changes are expensive).
But what is the point of this article? So our vehicles utilize a material that took a monumental amount of material over a monumental timeline to create. The supercar we keep waiting for hasn't arrived yet (I wouldn't mind flying around like George Jetson, complete with crazy sound effect) so what exactly are we supposed to do beyond what we already do (carpooling, not buying Hummer H2s, etc)?
Atleast it should keep the proportion straight,
apart from protecting the precious fossil fuel
for our future generation. Think about a
small blender sized apparatus that could make
diesel(bio) on demand. It could be a killer!.
I don't know what you guys are talking about. My car runs on Oxygen, which is produced all the time by plants around the world.
Sure, it uses some kind of fossil fuel to catalyze a chemical reaction, but it's oxygen that spins the flywheel.
If fossil fuels get depleted, that's a very bad thing - but there's always plenty of oxygen. All we need to do is find a different catalyst.
(don't believe me? Look under your hood - you'll be surprised to learn that your "gas pedal" is not controlling the amount of gas going into
your cylindars, but it's regulating the amount of air flowing through the intake manifold. It's an Oxygen pedal, not a gas pedal.)
What's the big deal? Its not like this 4 tons of dead plants are doing anything else if I'm not using it.
Mod point free since 2001
Even if this was way overestimated, 1 years worth of plants per day is a tiny amount when figured over the hundreds of millions of years of prehistoric plants that ever were. 365 years worth of plants used per year is a paltry sum when viewed in the right perspective.
because what hunting rifle has a bayonet lug
This figure incorporates the added inefficiency of the process that converted plants -> oil. That was probably a very lossy process.
The crux of his "theory" is that only one-10,000th of the ancient dead plankton carbon that got deposited on the seafloor got turned into oil. He considers the other 9,999-10,000ths to be waste, or something.
From a more logical viewpoint, all that other carbon that didn't wind up as oil is completely irrelevant to anything and everthing. It shouldn't even be considered in the equation. It still sits underground in some form, we haven't affected it in the slightest by pumping out oil. So how can it be considered "waste"?
NO!!! The carbon matter that wound up NOT as oil simply LEFT THE BUILDING! It had NO EFFECT whatsoever on the carbon matter that DID become oil. It's not like the non-oil-producing carbon got CONSUMED or something, IT'S STILL THERE UNTOUCHED. They are two separate and distinct groups of carbon matter.
The rest of his equation seems plausible.
-73, de n1ywb
www.n1ywb.com
No, I'm not talking about corn ethanol here, so please stop the silly arguments about how ethanol is inefficient - making it from corn is just silly. There are lots of cheap, far more easily harvested cellose-based plant products that can be broken down with slightly more effort into ethanol, and could provide us with a cheap, plentiful, and substantially more efficient means of storing and transporting biological energy to power our big ole' gas guzzlers.
This is a substantially more realistic and cost effective solution than hydrogen, and it doesn't require us to build massive amounts of new infrastructure (just a limited number of bioethanol plants) or a totally new kind of transportation and distribution network to handle hydrogen. Ethanol is stable, easy to transport, and holds up quite well to most abuse (well, except the drinking kind). It still takes a lot of cellosic material to make a gallon of bioethanol, but it's a lot less than went into that gallon of gas - it's just that the input of biological material happens in the here and now instead of millions of years ago - so we have to bear the cost ourselves. But it's renewable, predictable, and would remove the sick political imperatives behind the distribution and availability of fossil fuels. As an added bonus, no more terrorists.
Since when was 25mpg reasonably efficient for a car?
1983?
Human eat large quantities of food each year as well. All those hamburgers we eat come from cows that have to eat grass you know. Even worse if your a vegetarian, for then you eat only vegtables, and those require a lot of space.
Not only that but some of those culinary delights you call dinner require foodstuffs from several continents. This requires that planes, ships, trane and trucks all be in operation to support this thing you call dinner.
And all those vehicles require things too you know. Just try and get a vehicle that doesn't use parts from several continents. All those parts require factories, and they require electricity. Electricity requires source material like coal and natural gas. Those also come from long dead plants.
Face it you can't win! You cannot exist on this planet without consuming things, it's called the cycle of life. Your going to use resources regardless, so go drive somewhere, have a nice dinner, and remember that someday you too will end up in somebodies gas tank.
Now can someone please explain to me why I'm supposed to feel guilty for exploiting the long dead biomass of a bacteria, plants and dinosaurs?
Makes me think how inefficient trees are at making gas more than how inefficient cars are at burning it.
This article is baloney. The current thoery is that most oil was created during the formation of the planet or shortly thereafter, and does NOT come from plants/animals/whatever. So we are burning a totally non-renewable energy source.
And so what? The computers will take over the earth and kill us all long before we run out of gas.
I hear walking is much more efficient. You can walk a mile on only a small meal, prob the equivalent of 1/2lb of vegatables. This, of course, makes it more efficient.
Of course, if you have a 60 mile commute like I do, I'd need to eat about 30lbs of vegatables.... as well as allow approximately 12 hours of commute to walk those 60 miles. Which means I would have to leave for home the second I get to work in order to leave in time to get to work ontime the next day. Oh boy...
on a side note; I am sure (when it is caculated, and it will be) I could probably drive around Australia a couple of times with the energy that has been expended on "first posts" - and useless N.Bs like this one.
The sun burns away trillions of tons of hydrogen every second. Human bodies are only able to convert about 25% of food to energy. Somehow the world continues to exist. If we could get 100% energy or even close to it out of anything a cup of coffee could probably power the US for a year.
I'd rather have litre than gallons, and kilometer or real mile ( = 10 kilometer) than your old 'miles'. I know it's hard to change your ways, but please, I should not have to learn the old 'empire' standards too?
The real inefficiency is the conversion of biomass to fossil fuel. 98 tons only makes 1 gallon of gas? If took 98 tons of biomass now and used it to produce methane for fuel, we'd do a hell of a lot better than the equivalent of one gallon of gas.
Our gasoline powered cars may not be efficient, but the fact that 98 tons=1 gallon seems pretty irrelevant.
Isn't this just implied by being a the top of the 'pyramid'? So how many 'trees' does the average wolf consume in a year? Maybe it will help if we stop the wolves from eating meat?
Yes this is a troll.
But a troll against fuzzy statistics.
Rode my bike to work today. You all owe me.
These were VERY big plants. 4 Tons was probably 1 fern.
The big three automakers would stop covering up the REVOLUTIONARY SUPER CARBURETOR that I read about in the back of Popular Science, we could get that number down to 1pptpm (Pre-historic Plant Ton per Mile)
Comments should be like skirts. Short enough to keep your attention, but long enough to cover the subject
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
No, i like to think of it as:
Even if these numbers are too large, this still makes you think about how inefficient the gasoline production is.
99.9% of that tonnage is all water anyway. This report is a bit misleading.
This is pretty cool news, actually. It means that the brambles from my mom's backyard should suffice to power my TT for about, oh, 50 trips around the earth.
Maybe Amoco or Shell should offer gardening services. Let's face it, few of us have the time or desire to really take care of weed-whacking on weekends. Why not drive up a big fat truckfull of those enthusiastic ("do people really care enough to cart off John's piles of compost to use as a renewable energy source? People do!") petroleum geologists, equipped with hedge trimmers and shovels--the owner of the yard gets to keep 50% of all the biogas created from the crap recovered from his garden, the rest is sold at gas stations.
I mean, it'd be a lot easier than bolting a Mr. Kitchen to the back of my car, like the De Lorean in Back to the Future, and shoveling 25 tons of rotting blackberry stems into it every time I want to take a trip.
Cole's Law: Thinly sliced cabbage
So what?
Plant matter is quite ineffecient for producing heat, especially when taking into consideration that 80% of a plant's mass is taken up by water - last I was made aware, water is not a particularly good source of fuel unless you can get the hydrogen out.
Alternatively, plants can be refined to a better state of consumption, i.e. vegetable oils for diesel engines:
http://www.greasecar.com/
Any spoon would be too big.
...worth of energy each day are being used to generated a few measly KW hours of electricity on my home Photovoltaic system?
Best Buy can have you arrested
I am a geology student and this piques my interest. To say that vehicles today are inefficient is a given. But to toss around asinine numbers like the U of U has done is just not good science. Here are the factors we have to consider:
Petroleum production is special. Not all plant material that has been on the earth becomes oil. Furthermore, Plant material becomes COAL, not oil. Oil comes from sea deposits that have been "cooked" by special conditions. If this is the biomass they are speaking of, then they do not take that into account. They use the asinine assumption that the carboniferous age and subsequent terrestrial plant life became oil.
The factor of time alone invalidates their argument. Few people truly understand time and how much time really has passed here on this earth.
There are several theories that hydrocarbons come from something else than compressed rotting plants.
The evidence is mainly circumstantial, and based on the observation that oil & gas seems to be linked to geographical formations like volcanoes and thin crusts rather than being tied to (e.g.) coal deposits, which would seem more likely.
Coal, after all, does contain plant remains enough to prove that it's most likely compressed peat and bogs.
But oil is a bit wierd. My theory (and it's probably not original) is that hydrocarbons are remains of annobacteria colonies that live off sulphur compounds deep in the earth's crust. Such bacteria are known to exist, observed around volcanic vents in the ocean floor, for instance.
Now imagine _really_ large colonies of such bacteria, living in hot porous sulphur-rich rocks, and dying to rot and produce oil and gas.
Seems more likely than (oil = compressed dinosaur bones and cabbage) to me.
Which also implies that oil is a much more massive resource than previously thought, it won't run out soon, but instead the problems it causes (global heating, oil-driven warfare in poor countries) will continue for a long time to come.
Ceci n'est pas une signature
But NOT my Prius
This is a cute, sensationalistic sound bite that I'm sure we'll see used time and time again.
It doesn't really matter what comprises a gallon of gasoline. It's not plants anymore is it? It's oil, and there is still a lot of it left.
I agree that it's time to move on and we should be focusing more resources to that end; but this article is informative but pointless.
That's efficient by the standards of an SUV maybe. My car does about 31-35 mpg on the highway, and even that's considered pretty poor by European standards. I always marvel over the fuel efficiency of the cars my relatives in the UK own. 44-52 mpg - and not terribly small, either. Of course, they have to be fuel efficient due to the high gas prices there, but man, I wish I could get a car with European fuel efficiency in the US. (well, I can, but the savings on gas is offset by import and shipping costs). I'm beginning to think it's a conspiracy, like DVD region codes.
There is no sig, there is only Zuul.
This research is also reported in the current issue of The Economist, October 25-31. It is on page 73 of the print edition; here is a link to the online version.
Oh, you crazy Yanks ;-)
Discover has an interesting article on how current waste products are begin turned into Texas lite crude. Too good to be true?
Technological savvy could turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year
Here is the company's link.
10: PRINT "Everything old is new again."
20: GOTO 10
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
Yes, I agree that today's internal combustion engines are ineffienct. However, this is a classic apples-to-oranges comparision gone bad. The prehistoric plant matter in question went through a whole heck of a lot in its journey to becoming crude oil. As another poster already pointed out, a non-trivial part of that transformation was loss of most of the water in the plants, and hence much of their volume. That means his figures for the weight are already suspect.
It would be much more proper to first examine the plants-to-petrol transformation process, and comment on how efficient that process is first, then the petrol-to-MPG process.
This is simply more cargo cult science, and we can and should do better, IMO.
Check out this link (Not sure where the original article is, there is probably better articles on the subject, this is just one I found).
The point is that the assertion that fossil fuels come from plants is just a theory, there may well be a lot more oil undergroung than we ever thought there was, and it may be something that existed prior to any plants.
grisha.org
one thing to note about the efficiency of a thermodynamic system. because of entropy, the max efficiency of a thermodynamic system isn't very high, i think it's around 40%. this is known as the Carnot Cycle. therefore, it is not physically possible to have internal combustion engines with efficiency comparable to electrical systems.
Some researchers have speculated that hydrocarbon based fossil fuels may be of geological origon as opposed as from plants as most assume. one point in their favor....most all larger planets in our solor system have heavy concentrations of methane (natural gas) in their atmospheres....it would seemn to reason that hydrocarbons were also present in the early eath atmosphere. it also seen logical that a percentage was trapped in rock far below ground, and perhaps converted to heavier hydrocarbons by heat and pressure not unlike the process used to convert hydrocarbons today.
...how many Libraries of Congress is that?
For every mile you ride in your car, God kills an innocent tree!
Shame on you!
It's not really about how inefficient our automobiles are. It's really about how inefficient the damned plants are at making fuel. There's the tragedy in this !
...don't worry, we'll soon have energy too cheap to meter. We'll unleash the limitless, endless, bountiful power of the peaceful atom to provide an inexhaustible supply of energy for all mankind.
A single aspirin-sized pellet of uranium will provide Mr. and Mrs. America with enough power to run their car for a lifetime. And soon, the peaceful atom will provide a propulsion source that will make family helicars practical and affordable.
Scientists expect this to happen in a few short decades--perhaps before the end of the sixties.
At least, that's what the science teacher said when I was in junior high school.
"How to Do Nothing," kids activities, back in print!
Hi all,
The really long term problem is the loss of CO2 in the atmosphere, as more is put into Limestone over the millenia. We are worried about Global Warming over the short term ( which could easily be related to solar output, rather than man made activities), but over the course of millions of years, we have had steadily lost CO2, and the planet has become increasingly cooler.
Is it the conversion process of plant matter to fossil fuels that is inefficient?
I'm not saying that cars are the most efficient things on the face of the earth, but these numbers don't necessarily imply that cars are uniquely inefficent among all our technology. It just implies that most of our technology relies on an inefficient process (the conversion of normal organic matter to fossil fuels) to power it.
I'd like to see how much prehistoric plant matter it would take to cook my Thanksgiving dinner on my stove, or heat up the water for my 10-15 minute shower in the morning.
If only we stopped using gasoline, all of those prehistoric plants would spring back into life!
The writer's thesis is clearly that internal combustion cars are bad. While that may be true, alternate technologies are more inefficient and polluting.
30% of the electricity in the US is generated by coal (citation, Coal Association advertising in local newspaper). When some idiot discusses "Zero Emissions Vehicles" in the same breath with electric cars, you should smack them. Their ZEV is a remote emissions vehicle, likely polluting Utah or other states with signficant electrical generation.
I agree that hybrids are better. I even agree that alternative sources of fuel would be better, but using corn pollutes more. Hydrogen has this pesky habit of exhibiting the Stockholm Syndrome, making liberation very costly (more energy in than generated).
Show me an alternative and I'll buy the hype, but at this point, I haven't seen empirical evidence of a better alternative. And by the way, I bike commute in Oregon year round (25 miles)
"... but you can love completely without complete understanding." - Norman Maclean, "A River Runs Through It"
I'd like to compare that to how many tons are used to make biodiesel or other bio-carburants nowadays. someone has figures, please ?
That car would not survive a headon collision with a large drop of rain, not to mention an eighteen wheeler.
If we're going to start measuring car mileage in terms of prehistoric plant mass, shouldn't it be tonnes per kilometer? Or, tonnes per hundred kilometers...
Actually, I don't buy a lot of the numbers he used in the calculations. Oh well... it's not science but it's fun. Coming up next from the University of Utah: a study of how much energy is wasted around the world when people have sex that does not lead to babies.
yo.
Why is this in the science section? It sounds more like something you'd hear from a Bible Code freak.
now integrate over the total surface area of the plants and over time they were exposed to the sun (for photosynthesis). calculate the total amount of energy absorbed by the plants and create a ratio between that and the amount of energy the sun put out in that period. now you can include that in how inefficient gas is - look how much is wasted on all the non-plant-light-absorbing part of the 8 light-minute shell of energy from the sun! py jingo, cars are inefficient! sheesh.
The blogger who posted this doesn't get it.
The whole point of the research was to show how inefficient the oil production process was, not how inefficient cars are! It says right there that only 1/10,750th of the plant matter made it to oil and natural gas. So actually, the plant matter represented by one gallon of gas is about 18 pounds.
Go look up ethanol production and other plant fuel oils under development. It doesn't take 98 tons to make a gallon.
No, Mr. Blogger, this does not make me think about how inefficient cars are. That was not the point of the article.
...
You know, plants convert less than 1% of the sunlight falling on them into utilizable energy. The worst solar cells do much, much better than that.
Frankly, I think we start building nuclear reactors again. They produce a lot fewer environmental pollutants than current generation plants.
Oh, come on. Small numbers are better than big numbers. How about 6 -- the Smallest Perfect Number
In any civilised country a car doing 25 mpg would be taken for a service, or you'd be looking for where the tank leak was.
American cars sooo suck
First, we don't really know where oil comes from.
This is "science" that is only meant for political posturing. By his theories, coal is a better source of energy because it took less plant matter to make it.
...I'm doing my part in ridding Mother Earth of that black poison called "oil" polluting her crust. The sooner we all chip in and convert this into harmless CO2 and water the better.
Let's pretend that we've got just 5 million years' worth of plants as the source for all the oil. That gives us 13,000+ years of oil for our cars. Even if we assume that all other uses of fossil fuels amount to 10 times as much use per year, that still gives us well over 1200 years worth of energy.
Maybe by then the eco-whacko Left will allow us to build nuclear power plants again. I know, I know. Call me a dreamer...
Arrr!
60,000,000 years worth of plants divided by 365 to see how many years worth of gas we get equals 164,383 years at our present rate of consumption. Where's the problem?
_ _ _ Go for the eyes Boo! GO FOR THE EYES!
It bubbles up from the core of the earth. What we call petroleum is just eaten up by bacteria and we just think it's made by prehistoric plants.
Environmentalist: We're running out, and our current wasteful practices mean we're running out fast!
Apathetic response: Who cares about a bunch of dead plants anyway?
The answer being, as we (literally) burn through these resources, they not only produce waste that endangers the place we live, they also become more scarce -- leading to the places that have the dead plants, in the form of oil, receiving quite a lot of value for what's left. Scarcity and value, see? Take a look at the extreme wealth of Saudi Arabia's ruling family, examine the Wahaabist faith they've backed using that wealth, all the result of a scarcity of these old dead plants in the world, and then tell me -- is it a potential problem for oil to be the scarce resource we're relying on? Do we want to continue to use inefficient methods of blowing through the oil we've got left, making it more scarce, increasing the upheaval caused by things like Opec's production targets? Or not?
So, see, when environmentalists are worried about this, it's not some tree-hugging lovey-eyed thing on their part, it's self-interest. Similarly, when scientists fret over an oncoming mass extinction, they're worried because no previous mass extinction has allowed the currently dominant group of species to continue in that role. It's not that they're only worried about black-footed ferrets or whatever; they also see that human survival is at stake.
That being the point. Not that "really big numbers" is necessarily the best argument, but human survival is the point.
"Fundamentalism" isn't about divine morality. It's about human authority.
From the article: ...To determine how much ancient plant matter it took to eventually produce modern fossil fuels, Dukes calculated how much of the carbon in the original vegetation was lost during each stage of the multiple-step processes that create oil, gas and coal... .
In other words, this guy calculated the efficiency of the formation of fossil fuels from the original plant material, then used his result to proclaim, with lots of exclamation marks, just how horrible automobiles are.
His whole argument suffers from the fallacies of false analogy and exclusion.
This is nothing more than a piece of propaganda by a guy who is most likely, from the title of the paper, one of these idiots who think that solar power is actually a workable alternative for a high-energy economy and civilization.
If these are the kinds of papers that pass for valid PhD work at the U of U, remind me to never send my kid there for an education in critical thought.
You can tell a great deal about the character of a man by observing those who hate him.
So would the people who put this out be thrilled to have electric cars that get powered by nuclear power ? Yeah I understand the point that the oil will run out.
"The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars"
:)
m
Note that there have been hundreds of millions of years for these plants to accumulate, which implies that cars should have ample gas for centuries
This highlights the fact that supply will NOT be a reason why petroleum products will no longer be used. I think that only a change in the bottom line to consumers and businesses will change any policy towards the environment. For instance: a car tax [only on 'non-green' cars] going towards research of alternative methods.
Note also that this idea is a subset of having the final cost of products (i.e. waste management) incorporated into the retail cost, where today it is not. This is from Marshall Brain:
http://marshallbrain.com/etq-landfills.ht
Robo-Blogs of the world: UNITE!
The cover story of The Economist this week is about the development of alternative sources of energy, and how little the Bush administration is doing to encourage that development. Rather than implementing policies to decrease the demand for fossil fuels and increase the supply of alternatives, the government's policies, including the new Energy Bill, simply focus on increasing the supply of fossil fuels.
Sigh.
"Can you name the car with four-wheel-drive?
Smells like a steak and seats thirty-five!
Canyonero! Canyonero!
Well, it goes real slow with the hammer down.
It's a country-fried truck endorsed by a clown.
Canyonero! Canyonero!
Twelve yards long and two lanes wide,
Sixty-five tons of American pride!
Canyonero! Canyonero!
Top of the line in utility sports!
Unexplained fires are a matter for the courts.
Canyonero! Canyonero!
She blinds everybody with her super-high beam.
She a squirrel-squishin', deer-smackin' drivin' machine!
Canyonero! Canyonero!"
"My shit always works sometimes!"
Hmmmmm...
1200 lbs, 20 horsepower
vs.
2400 lbs, 200 horsepower, power steering, A/C, Automatic Transmission, etc.
Yeah, I'd say we've gone nowhere in the last hundred years.
Comments should be like skirts. Short enough to keep your attention, but long enough to cover the subject
14-16 mpg is the "reasonably efficient car" around here. Something like Dakota light truck.
Most of SUVs are even worse.
"How many acres of weeds do you think it would take to make enough hydrogen to run your car for a week?"
And voila! Here we have the key to the answer.
Yes, yes, I know, this isn't hydrogen, but the answer is still going to be rougly similar. Probably rather worse actually, for the reasons I expounded in that rather fractious thread. Biomass for fuel will not save us.
Nor is the problem the efficiency of our cars. The problem is the efficiency of our cars. That is to say making our cars 35% efficient instead of 25% efficient still won't change the essential vast quatities of plant matter needed to run them. It's the car itself, as we know it, that is the problem.
Not to mention how we use them. See Douglas Adams, re "bypass."
Mass transit won't be our saviour either. Trains are more efficient than cars. Trains used to run on biomass. We stripped forests bare to power trains, that's why we switched to fossil plant fuels for trains in the first place. No more damned trees. Nearly one quarter the people in the US in 1900 too, and far fewer of them used and significant mechanical means of travel on a daily basis. Now we have four times the people and more cars than people.
Myself, I've found that one pound of plant mass is sufficient to take me 20 miles, but only a few of us are willing to take that route.
Today.
Tommorow you may have little choice in the matter. They ain't makin' petroleum crude as fast as we're using it.
KFG
*yawn* [monotone voice] wow this is just too thrilling [/monotone voice].
So, automotive vehicles aren't effecient - we didn't need this paper telling us that...
Instead, how about a paper on the solution to get automotive manufactuers to actually sale (more then 5 I mean) the more effcient less prehistoric-based vehicles? Or the consumer to actually buy them? Now there's an interesting paper...
Building more buses to combat traffic congestion is like buying a bigger belt to combat obesity
The wonderful thing about cliche arguments is that they are always so easily turned upside down.
Yeah, except that the original quip actually made sense. Increasing the availability and utilization of mass transit actually *does* combat traffic congestion.
Ass.
Current world consumption is around 75 million bbl/day.[2] This might lead one to believe that oil will last our current rate of consumption for another 35+ years.
Unfortunately, there are two problems. Firstly, oil consumption is increasing globally at around 5% annually. Secondly, and much more seriously, oil production is unlikely to proceed at a increasing rate until the last drop comes out of the ground.
The shape of the oil production curve is subject of some debate, but a popular model is the "Hubbert Curve" named for the Shell Oil geologist who, in 1956, used it to successfully predict that oil production in the lower 48 would peak in the early 1970's.
Using the Hubbert Curve for global oil reserves, Kenneth Deffeyes predicts peak global oil production will occur between 2000 and 2007 before beginning an irreversible decline.[3] Other geologists have given more optimistic forecasts, pushing out the start of the decline several more years.
Sources:
[1] World Resources Institute
[2] Energy Information Administration (part of the Department of Energy)
[3] "Hubbert's Peak" by Kenneth Deffeyes, Princeton University Press, 2001.
Rather, it says that fossil fuel, and the process it goes through to get to the point that it is useable for a fuel (including the several thousand years it spends underground), is inefficient. The same cars running on grain alcohol use considerably less, as far as I know - I can't imagine 4 tons of corn being used to produce a gallon of grain alcohol...
"The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars. Even if these numbers are too large, this still makes you think about how inefficient our cars are." I dont think its the 'cars' that are inefficient... It's the 'plants' that are inefficient... Its the *plants* that ultimately yielded only 1 gallon of fuel. We need better plants..not cars... :D
My car my suck at 20 mpg, but I love my Lexus RX300 SUV. It rides VERY smooth, VERY comfortable, VERY luxurious. I can afford it easily, so why can't I have it. There are many similar things I can say about smokers and how bad it is for the individual, but it's thier right to kill themselves. I know I know, but it's not right for me to kill my planet. As soon as there is an alternative source available to me to use with my RX300, I'll switch. Remember, I said available to me, not in some lab or in 1 service station.
This study says nothing, except that only a small portion of decaying plants went into fossil fuels.
Does it say what happened to the rest of those plants?
No. Odds are THEY WENT SOMEWHERE, seeing as things don't just cease to exist.
So, your fuel came from part of plants, and the rest went SOMEWHERE ELSE.
OOOooooo! Scary!
Yes, it could. However, wind or solar directly to electricity, for fixed sites, is much more efficient than converting them to hydrogen & using it for a mobile source. You lose quite a bit in converting to hydrogen, and then another "quite a bit" in consuming it, so it's not a very efficient way of using that wind or solar power.
it is about 20-22 pounds of grain per pound of beef.
I eat my grapes at room temperature, cuz the cold ones hurt my teeth
Anything Into Oil Technological savvy could turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year.
According to the above article the U.S. could end its dependancy upon foreign oil and not have to worry about EVER running out.
10: PRINT "Everything old is new again."
20: GOTO 10
Yes - I often think how inefficient your cars are.
But the carbon that would be lost during the
conversion from plants to fossil fuel would
eventually be recycled back into plants, which would
be converted into fossil fuels...
etc. etc.
In diesels, the accelerator pedal directly controls the amount of fuel injected. There isn't a "throttle" as such, the air intake is wide open all the time. Even at idle there's a massive airflow through the engine, which is why turbocharged diesel engines can be so efficient and responsive.
I wonder how many tons of stars it takes to make prehistoric vegetation? If we could figure out how many stars need to nova to make a ton of raw materials for plants (carbon, nitrogen, oxygen, etc.) then we could show how inefficient cars REALLY are. Wow!
I hope that after I die the one word people use to describe me is "resurrected."
In any civilised country a car doing 25 mpg would be taken for a service,
You mean Like the BMW 525? (20 city, 28 highway)
Or the Saab 9-5? (20/29)
Or the Volvo V70? (20/26)
It appears that european cars "sooo suck" as well.
Comments should be like skirts. Short enough to keep your attention, but long enough to cover the subject
our situation in america is so bad because we have the least efficient, most gas-guzzling cars. i recently compared the fuel efficiency of major u.s. cars with european and asian autos, and hell, they are waaay better.
When my parents were at school, 196000 pounds only made 87t 10cwt!
196000 lbs / 112 lbs in one cwt = 1750 cwt
1750 cwt / 20 cwt in one ton = 87.5 t
0.5 t = 10cwt
giving 87t 10cwt.
Of course, if you used the rough approximation of 1kg = 2lb, then the 196000 would be in error, because one olde englishe ton {2240 lbs, or 1016.064kg} is about equal to one megagramme {metric tonne}.
I don't see the point of this post. We will never run out of oil. Why? Economics. Assume oil began to become scarce. No new supply is replacing the oil taken from the ground. Assuming fixed demand, the price of oil would rise as the supply diminished. (If demand rose, the price would rise even more.)
As prices rise, alternatives to oil become financially viable. Suddenly fuel cells or wind power or any other technology currently more expensive than oil looks attractive to investors. Those who can afford oil buy it, while others turn to the alternatives. Assuming no new oil is discovered (to address the supply issue), eventually no one cares about oil as everyone has transitioned to other forms of energy. The remaining oil sits in the ground unused.
Of course this adjustment must take place over the mid- to long-run. Short-term adjustments are called "oil shocks," such as we had in the 1970s or during the early days of most recent wars.
Helevius
"Staggering"? Not really. Most of what used to be a plant was water. And if, as the article says, only 1/10750th of the carbon from the plan makes it to become oil, the rest served as fertilizer (to help other plants grow and become oil (and more fertilizer)).
If the idea is to point out that gasoline engines are inefficient, well, duh! If the idea is to point out that oil is an unsustainable energy source, well, duh! If the idea is to point out that we need to develop new energy technologies, well, duh! But "98 tons of plants per gallon" is kind of a red herring. Plants die, the water evaporates, the plant mass decomposes and serves as fertilizer and a little bit, over a long period of time, ends up as oil. As a system, it's somewhat inappropriate to pick out a single element the way that the author of this paper did. Yes, it did take quite a large amount of plant material to make a gallon of gas, but if more of the plant material turned into oil, then less would have been available to enrich the soil and provide for the growth of new plants. The numbers are interesting, but they only tell part of the story.
Oh, and to add to the conclusion of the article, the author left out nuclear power from "other technologies".
-h-
The steel used to build your car's frame and body was produced in a supernova over 5 billion years ago. Only a tiny fraction of the energy generated by fusing at least 4 solar masses of hydrogen went into the production of the iron, chromium and carbon that was used to make the steel. A whole solar system was likely destroyed in the process.
Automobiles are far more inefficient than even this article implies.
Edith Keeler Must Die
-matthew
"THERE IS NO JUSTICE, THERE IS ONLY ME." -Death
donald rumsfeld accuses rain forest pygmies of harbouring weapons of mass destruction.... the fact that todays trees are tomorrows oil is obviiusly nothing to do with the subsequent invasion and failure to find any WMD, but hey, the trees are safe from the brutal opressive pygmy regime
Kumbaaa - yaaaa..... my lord.... kuuuumbaaa yaaa...
So, if we weren't using all that degraded biomass to power our cars, what would it be doing? Sitting in the ground, being useless. So what if we burn up 2 tons of what was once a fucking plant? It's not like we're cutting down 2 tons of CURRENT living biomass for each gallon. I mean, sure, look for more efficient energy sources; might as well, right? However, using old biomass that isn't doing anything else is better than, say, converting people into fuel. Of course, I can think of some people who would be more useful powering my car than in their current existence.
http://xkcd.com/386/
I don't think that the words "car" and "efficiency" belong in the same sentence.
Driving = squandering resources. Once squandered, you get this.
Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself. -- Mark Twain.
a href="http://slashdot.org/comments.pl?sid=83454&ci d=7299978">my original post the other day"</a> sums it up.<p>However, since most slashdotters are lazy, I'll explain it in __ words.
<p>
TDP or Thermal Depolymerization is the process of using heat and pressure to turn any carbon based organic material back into its original components. Basically it does what the earth does, just it does it in minutes, not millions of years. Hydrocarbons go in, oil and water and raw materials come out.
Yes Francis, the world has gone crazy.
my gas guzzling SUV eats up even more then 4 tons/ mile. I need a bigger engine that gets even worse gas mileage now because lord knows I love to be on top.
Is that, if we assume that oil commes from prehistoric plants (as opposed to this idea brought up in this discussion), then oil IS a renewable energy source, just not on a timescale that humans like. So use up that oil, but leave the forests alone, and we'll have a new batch in another few hundred million years.
Dogma - "let's just say we'd like to avoid any empirical entanglements."
I thought that the theory that dinosaurs (and prehistoric life) were the source of oil had been debunked...
The REAL jabber has the user id: 13196
What you do today will cost you a day of your life
Mike Ruppert/FTW
"The Party's Over
"The PARTY'S OVER Oil, War and the fate of Industrial Societies By Richard Heinberg When Mike Bowlin, Chairman of ARCO, said in 1999 that "We've embarked on the beginning of the last days of the age of oil," he was voicing a truth that many others in the petroleum industry knew but dared not utter. Over the past few years, evidence has mounted that global oil production is nearing its historic peak. Oil has been the cheapest and most convenient energy resource ever discovered by humans. During the past two centuries, people in industrial nations accustomed themselves to a regime in which more fossil-fuel energy was available each year, and the global population grew quickly to take advantage of this energy windfall. Industrial nations also came to rely on an economic system built on the assumption that growth is normal and necessary, and that it can go on forever. When oil production peaks, those assumptions will come crashing down. As we move from a historic interval of energy growth to one of energy decline, we are entering uncharted territory. It takes some effort to adjust one's mental frame of reference to this new reality. Richard Heinberg has distilled complex facts, histories, and events into a readable overview of the energy systems that keep today's mass society running. The result is jarring. The Party's Over is the book we need to reorient ourselves for a realistic future. - Chellis Glendinning, Ph.D., author of Off the Map: An Expedition Deep into Empire and the Global Economy"
The result is that the fossil fuel inventory would have been constructed from a very slow "skimming" of the dregs of the process of carbon fixation. Of course it was inefficient; laying down deposits wasn't the purpose for which the plants evolved!
Scientists restrict study to entire physical universe; creationist
In modern farming, much of what is thought to be "waste" is reused already. Most silage gets re-incorporated into the soil, to replace or reduce the need for chemical fertilizers. Other silage is used as animal bedding (as is used paper, in some cases), and the "soiled" bedding gets used as fertilizer. Many other forms of "waste" are find their way back into the soil.
Take away this "waste" to make biofuels, and it has to be replaced. That means chemical fertilizers which can run off more easily, and cause problems downstream.
I guess this is just restating that there is no such thing as a "free lunch". Biofuels are likely the most efficient way to utilize solar power for the foreseable future, but fossil fuels (which will still be fossil fuels, even if we don't burn them) are an important part of our lives today.
Plus, just think - burning fossil fuels is returning to the atmosphere all that CO2 that those prehistoric plants scrubbed out eons ago; we're just returning earth to where it was a few million years ago!
Thomas Gold's theory is that most of the organics were accumulated from comets hitting the earth during formation and are slowly rising up from the deep into pockets. When pockets form, some types of bacteria might start growing in them. But the bacteria is not necessarily the source.
There is nothing so silly as other peoples traditions, and nothing so sacred as our own.
Do you think the gasoline fueld bomb you are driving now is so much safer?
It also took millions of years. However, since the dead plants can't really be used for much else, and we don't since the "processing" time has alread elapsed and the end results are ready for "consumption", then the production process from live plant to oil is already 99% completed. We're just here to pick up the end result.
THIS SPACE FOR RENT
I mean... you realize the metal in the car had to be generated by a SUPERNOVA explosion right? Which means it had to "burn" in a star for billions of years, and then explode cataclysmically, and then cruise around the universe, and accrete around our star, and eventually for a planet, and go like that for a couple billion years, before it was extracted from ore and made into your car.
:-/
How monumentally inefficient! We should all be living as hunter/gatherers, like the Bushmen of the Kalahari.
Unless you are intentionally preaching to the choir, I suggest you take a look at the audience you are trying to convince and adjust your arguement.
Unless I am mistaken, its the "Capitalists" you are trying to convince of your position. You would do well not to insult your intended audience by sticking them all in an intellectually small group and distort then exaggerate their position for the benifit you your rhetoric.
No matter how wrong someone is, you will never convince them of it by insulting them.
Im not here now... Im out KILLING pepperoni
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
Yes, my car is so inefficient because it can get me from point A, to point B (1000 miles away) in under 16 hours (provided I obey the speed limits). Any human would burn plenty of calories, poop a LOT, pee EVEN MORE, and eat a bunch of food to cover that distance on foot over the course of a FEW MONTHS! Let's face it, energy can be neither created nor destroyed. All this crap about "killing the environment" is really pretty lame, despite the concern that we're 'not doing good enough.' Sure, let's all go back to "prehistoric days" when we all lived to the ripe old age of 30 and had no means of communicating with those outside of our own tribe. Besides, think of all the COMPLETELY inefficient uses of raw materials back then!
You assume that gasoline/oil come from plant matter, and i dont think this has ever been proved.
"There are 11 kinds of people: those who know binary, those who don't, and those who could not care less!"
... though perhaps that wasn't the intent of the article. Although perhaps blown out of proportion, the article highlights the sheer amount of biomass required to generate fuel. It is doubtful, except in niche markets, that there is a will and a way to convert adequate amounts of agricultural resources (incl. the "waste") over to biofuel production sufficient to meet our current (and future) fuel needs. It seems the dead plants prove the point.
"Consensus" in science is _always_ a political construct.
...not on your life!!
My PREVIOUS car got 35MPG on the highway and had plenty of power. They don't make cars like that anymore..
Congress, with all its lip-service about ending our dependence on foreign oil, THIS YEAR, voted DOWN a bill requiring car companies to adhere to higher mileage standards.
-- I am. Therefore, I think!
Let's say we don't use it. What good does that do (other than the acknowledged poluution reducing)? Do plants use it to feed off of? Does it act as some karmic glue for the planet? Or does it just lie there, being wasted energy. Or is it only good for one thing, to be used as energy?
The inefficiency isn't in automobiles, as they are something like 30-50% efficient at retrieving the chemical-bond energy from gasoline.
The inefficiency is in the production of oil from dead plant matter. Oil is one of the lesser byproducts of decaying vegetation undergoing geological stresses. Coal is much more plentiful. And then gasoline is only about 45% of the matter in crude oil. For each gallon of gas you get 1.2 gallons of methane, kerosene, tar, paraffin, etc.
So don't blame Otto, blame Gaia.
Maybe the PLANTS should work on their efficency of converting sunlight to gasoline. How much sunlight goes to waste?
Won't someone think of the children?
M@
Krispy Cream is people
What would a geek do?
People want to drive SUVs. But SUVs use too much gas and pollute too much. What is the proper geek response to this dilemma?
A. Make everyone walk, take the bus, and drive smaller cars.
B. Invent an SUV that gets 100 miles to the gallon (preferably a gallon of H20).
It amazes me how many geeks reach for the social engineering solution instead of the ingenious, creative technical response that is the hallmark of geekdom.
I meant 1lb food :: 5 lb animal.
The ratio is better for aquatic animals, since they don't expend energy overcoming gravity.
Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
A staggering 98 tons of prehistoric, buried plant material is required to produce each gallon of gasoline we burn in our cars, SUVs, trucks and other vehicles.
Next thing you know, they'll be saying that it takes hundreds of tons of hydrogen to fuse to allow a solar powered car to drive a mile. How wasteful!
GF.
Lots of petrified grits
...a 4WD coal-burning monster truck, you insensitive clod!
In Buckminster Fuller's 1980 book "Critical Mass" he had also calculated that one gallon of gas comes at the expense of $1,000,000 (1980 dollars) worth of solar radiation, based on the average rate of solar radiation conversion into GDP in 1980.
Whichever number you choose, $1,000,000 or 98 tons, they both are large enough to induce great amounts of guilt in me every time I get behind the wheel.
I like the mention of human-scale urban planning mentioned above. That's the kind of thing that we need to get people out and part of their communities again.
The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars.
Considering that we have about, ohhh, I'd say, at leat 50~500 billion days of solid plant-growing prehistory behind us, I fail to see how this metric means to worry anyone. Post again in 150 million years and we'll talk.
If we continue to use fossil fuels at this rate.... we can't replentish our oil supplies fast enough.... meaning oil might not be a renewable resource!!! Someone call the Department of Energy!!!!!
did you just say you are a terrorist? ;)
Stop making people, institute widespread culling of humantiy
I, too, am in favor of Global Thermonuclear Warfare. The friendly radioactive dust will have the added benefit of increasing mutations helping us to evolve more rapidly into our new distopian future; in which we welcome new overlords, who may or may not be apes, or have psychic powers.
The Economist also had a large section devoted to ways that governments could use to break out from the tyranny of oil. From that article:
So there you have it. No bleeding-hearted wooly liberalism required. Even a Saudi Oil expert sees the writing on the energy wall.Drill baby drill - on Mars
Come on, put this in terms we all understand! How many Libraries of Congress does it take to make one gallon of gas? And thus how many miles per LOC do our cars get?
Do you people really want to use them all ??? .
I mean after all its the duity of every geek to
go against any capitalist driven enrgy source
What happend to emproving effeciency of even
focil fuels ? Have we gotten anywhere past
the initial stage of development ???? where is
the multiple cycle engines that use a combustion
in one cylinder, heat expansion in another and
stuff like that . And please dont tell me that
they have tried and it doesnt work . Because
power generation plants have been using this
cycle for a long time . Say using exaust heat
to drive a boiler that drives another turbine
and such . And thats just old tech !!!!!!!
Cmon geeks wake tha fuck up !!!!!!!
Its up to us to change the world .
The earth has a mass of sextillions of tons. Oil reserves measure in billions upon billions of barrels. That oil was made over hundreds of millions of years and is essentially captured solar energy in a hydrocarbon form.
The fact that we don't use it efficiently is another matter entirely.
Healthcare article at Kuro5hin
Here is a link to some info on Brazilian use of sugarcane to make ethanol which is used as fuel for Brazilian cars. Renewable, provides jobs and doesn't pollute as much, and makes Brazil a lot less dependant on oil and oil companies.
Wierd thing is that they're the only country to ever have done this. This would give Africa and asia valuble export resource that is renewable.
There was an article here on it a while back. Used compressed air as it's energy storage medium. Actually exhausted cleaner air than it sucked in. The guy was offering factory franchises too.
Last time I checked their page was a bunch of broken links. Heard the inventor got death threats from oil barons. Did they kill him?
NT
Perhaps he is unaware of catalytic abiogenous synthesis of hydrocarbon masses in the earth's crust. (don't know? then research)
This isn't theoretical, this is working technology that replicates the process that created the oil in the ground. So these numbers come from actual measurement of input and output. The Utah guys, I have to conclude, are full of it.
(By the way, fundamentally, TD is not a new technology, but before it was inefficient and poor quality. Now it's 80% energy efficient and makes good oil. A pilot plant is just now going into production, turning leftover turkey guts into fine #2 fuel oil.)
Theses numbers are to be correlated to the proportion of this type of cars.
Most of the european car are small cars (for ease in the old fashioned cities). Most of these cars are around (and often more than) 47.0429169 miles per gallon (google: 5 liters per 100 kilometers = 47.0429169 miles per gallon).
"i can afford it, so why can't I have it".
Perfect. You can afford it, but the world can't afford to have a load of idiots like you in it pissing our natural resources up the wall.
Tell me a convincing reason why helping reduce the damage we do to our environment isn't worth you making a switch to a smaller, more efficient car. Can you not live without your heated leather seats? FFS, THINK.
According to a sign on at exhibit at the Peenemunde rocket museum (where the V2 - pretty much the precursor to all present rockets) was developed:
;-))
"It took 30 tonnes of potatoes to produce the alcohol mix rocket fuel for each V2".
Peenemunde to London ~ 600 miles, that by my reckoning was 1/20th of a tonne per mile. (The oxidiser was (if I remember correctly) LOX, and I have no idea how many potatoes were required in its production
So I do away with the process of turning plants into petroleum, and burn the plants directly in my engine. Anyone can do it! You only need:
With either method, waste vegetable oil from restaurants can be used, solving two problems at once!
With the exception of nitrous oxide and CO2, vegetable oil powered diesels are MUCH cleaner than petro diesels. Yes, they produce climate-warming CO2 in similar quantities to petro-diesel engines, but the CO2 they release was taken out of the atmosphere last year, NOT millions of years ago.
It is unlikely that Big Oil is going to embrace this, but you don't have to go it alone. Co-ops for producing and/or distributing biodiesel are sprining up like rapeseed oil plants. Google for "biodiesel," "SVO," "WVO" for more info, or visit www.GoBiodiesel.org for more information.
: What Constitution?
Congratulations! one of the few posts I've read yet on this subject that shows a reasoned, intelligent and well articulated opinion (not to mention absolutely correct) - hat's off to you!
A pity the author used totally brainf*cked (see, I am polite!) units, so I cannot have a good estimate of what he's talking about.
Hey, Google, are you sleeping or what? When will you do that unit conversion tool I asked before? You already have "Google calculator" so it must not be that difficult to "translate" a moronic article in feet to proper human-readable units like meters.
And no, I don't have the time to code: I'm busy having ideas...
The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars.
How about using the right words? That's "every day," not "everyday."
On normal 95 octane (very low octane unleaded) they should get 20-odd mpg. And I think you'll find that the 4.6 Range Rover engine produces a damn sight more than 300HP. Don't forget that in the US, HP is usually measured at the flywheel, without things like alternators, water pumps or aircon compressors, whereas UK BHP figures are taken on a rolling road (so it's BHP at the wheel with engine in "production" trim).
There are many alternative theories for petrolium formation, many are 'abiogenic' theories that say that 'fossil fuels' are actually primordial, that have existed since the Earth was created.
For more info read see this and "The Deep Not Biosphere" by Thomas Gold of Cornell university.
One minor difficulty with use of pure (or near-pure) ethanol in an IC engine is energy density. A bit of poking with google yields numbers claiming gasoline has 132e6 joules per gallon, ethanol only 80e6 joules per gallon; in any case, I recall from one class that it's rather less. Another problem is that gasoline (being oily) helps with engine lubrication and increase engine part life, where ethanol does not.
Neither of these are insurmountable engineering problems, nor are any of several others. On the other hand, the problems are non-trivial enough to make ethanol less than a "Great solution". It's more of a "possible good solution".
In the long run, I suspect a designer-gened plant that makes some petro-like compound directly would be much more efficient. Given state of the art in genetic engineering and the time scale involved in major infrastructure switches, I suspect this would be a better path to pursue.
//Information does not want to be free; it wants to breed.
You can bitch all you want but as long as fossil fuels are the most economical way of getting places and doing things that is what will be used. Complaining that it takes X number of trees to get Y number of miles down the road affects NO ONE.
TT
For a reasonably efficient car, riding 25 miles per gallon...
Er, since when has 25mpg ever been associated with the word "efficient"?! Having a look around at some of the new cars here in the UK recently, its not unusual to see cars getting over 75mpg, some are even pushing 80mpg (this is extra-urban, urban is typically 45-50mpg). So travelling along the motorway at 70mph, using just over 1 ton of biomass per mile doesn't sound so bad, especially since the majority of plant biomass is just water anyway. A 1 metre cube of water is a metric tonne. Being generous with the figures, 1.5^3 volume (a random figure I came up with to get a tonne of biomass) of plant biomass is pretty small considering.
Still, roll on the fuel cell...
The SUV argument is always my favorite, my JEEP(you call it an SUV if you want if I do it it becomes tempermental) is almost 30 years old and it still gets 21 mpg, now while I realize this isn't earth shattering, consider the number of new vehicles that people haven't had to buy(and therefore have manufactured) over the years because of it. I look at some of the new lightweight fuel efficient cars around now and it's ridiculous how easy they are to total out in a wreck, requiring a new car to be built, and if they are fixable you don't just pound the dent out and repaint, no you tear that part off and replace it, but hey their enviro friendly because they get 35 MPG, horseshit!!
The biggest problem I have with most "enviromentalists" is that they are all for things that are a help in their eyes but anything they view as bad is bad and there's no changing it not matter how good the argument and how much proof you give them.
But the plants were already dead. What else were you going to use them for?
Well, if thine car offend thee, walk then.
I've heard two statistics about the inefficiency of beef. One is that it takes 20 pounds (9 kg) of grain or soy to make one pound (0.45 kg) of beef. The other is that it takes 12 pounds (5.5 kg) to make that one pound.
I'm not sure which is more accurate, but either way you're talking about 92% to 95% waste compared to consuming the soy directly.
This is in fact the number one reason I became a vegetarian... mostly to reduce the environmental impact of the food I eat. So I opted for a diet that relies mostly on that grain and soy itself... (pastas, rices, tofu, seitan, soy milk, etc.. Pretty much the polar opposite of a low carb one)
In the Portland, Ore area and like card games? Check out: http://groups.yahoo.com/group/portlandgames/
OK, I can't do much better than the week yet. When I die, I doubt I'll even make good petrol. If only I had my own little fusion reactor, I could do much better before I rot. Let's see a plant do that.
Friends don't help friends install M$ junk.
No, hydrogen is. Gram-for-gram, the nuclear fusion of hydrogen into helium produces the most energy of any physical reaction that we know. If we could produce fusion without using radioactive hydrogen (deuterium or tritium), then such a process would be perfectly clean.
Put nuclear fusion aside, the chemical reaction of hydrogen with oxygen to make water is clean and also produces more energy than any carbon-compound solution.
The feasibility of both of these methods have been studied for years. The latter is used to launch objects into orbit. Success of either method, however, would appear to threaten the business model of certain corporations as well as the personal power that their respective executives and large stockholders have. Human nature being what it is, my hopes are high but my expectations a bit lower.
@HbFyo0$k8 tH!$
Since only about one-10,750th of the original carbon in ancient plant material actually ends up as oil, multiply 4.14 kilograms by 10,750 to get roughly 44,500 kilograms of carbon in ancient plant matter to make a gallon of gas.
Umm. Does anyone see a problem with this, given the fact that we aren't even sure of the process by which petroleum becomes petroleum?
HBI's Law: Frequency of calling others Nazis is directly correlated with the likelihood of the accuser being Communist.
I don't find this at all shocking. Nobody has ever argued that there is an infinite amount of naturally produced oil on the planet to consume. It is very obvious that we will eventually need to evolve our society to a completely nuclear electric dependant one, unless we have significant developments in the arena of cold fusion. Either way, Electricity and/or fuels based on electricity, such as electrolysis to produce hydrogen will more than likely be the resulting type of energy consumed *eventually*.
whatever. you're such a fauxking corepirate nazi phonIE anymore robbIE.
you must continue to pretend eye gas.
Why don't we try to extract information from the crude oil so we can recreate the plant life and build an island where... nevermind. Or, we could let the tons of pre-historic plants sit around and turn into.... hmmm... oil. Or... we could use this resource that nature has given to us and continue to power civilization with it. Talk about pollution and alternative fuels is great, but please don't bother me about "wasting" plant life that have been dead for millions of years.
Assuming that it _DOES_ take 98 tons of plant material to produce one gallon of gasoline, they're still wrong. Gas is just one of the things that comes from crude oil. Think they just throw the rest away? Nope. It all gets used: Grease, Fuel-grade oil, Diesel, whatever. There's a market for every grade. How many plants does it make for a gallon of crude? And how much of that becomes gasoline? That's the real number that matters.
Unless you have a cost effective replacement, It really doesnt matter...
Give me a 1 ton solar power dually pickup and Ill be happy. Till then, Keep sucking Dino parts out of the ground.
i thought plants made coal, while animals, (dino's, etc.) made oil. Am i wrong?
Theonlyuse of monkeys is to testthings onthem.Some peoplemay say"Hey That'scruel!"and myresponse is"I don't like monkeys
Not to take away from the figures, but how much of that weight figure is moisture? I'll make a non scientific WAG and estimate 90% of plant life is water and probably 90% of thier figure.
Bad boys rape our young girls but Violet gives willingly.
The capitalist model WORKS with local, especially if you consider that you're 'buying' more than stuff. You're building a local economy that will help you out when you're looking for a job by having jobs to offer. Yes, really, and not just the Mcburger kind. You're paying for the world you want. If you want fitness and environmental stability, buy a bike as well as a car.
Ride when you can. I'm physically unable to ride a bike (apple picking had to be slightly modified as an adventure to include my physical limits, like not being able to reach above lower branches) so i take the subway.
My point is not that i'm an ecosnob, because i really do believe that for most things, effort should be made to bring ecologically sound products into the lower price ranges. BUt i also believe that wherever possible, i should be willing to pay a little more to buy the ecological benefit 'added on.' One way or another, we're paying for it, and i'd rather pay up front as a preventive than more afterwards for a repair. We think about food having too much that's bad for us; it sounds like you're on the right track thinking about where your food comes from and whether it's good for what's outside of us, too.
and for the record... it was wonderfully worth it to go apple picking. Season's about over now. The place makes wine and the like, too, so there may be a return trip... and i'm going to be feasting on cortlands and winesaps and whatever these green-striped apples are for a long while...
"I'd say 'Have a good time,' but arson is still illegal.
the fact that we are all reading this on plastic computers (unless you are using an old metal AT) makes us all guilty.
-- "You can lead a yak to water, but you can't teach an old dog to make a silk purse out of a pig in a poke" - Opus
This kind of article is pretty irritating. It appeals to pop environmentalists who have no real interest in the science of it. This article is just for the "we're all doomed, and it's the SUV people's fault" people. The numbers are stretched a little thinner than reasonable, and are based on presumptions that can't be proven (ala, where oil comes from).
Sure, cars are a glaring issue for the ecological folks (and a really easy target), but it's not something that's easily remedied. Even if we could just change the cars, there is hundreds of billions of dollars in infrastructure dedicated to our cars that would take more than a decade to change. In this case, whining about doesn't help.
Maybe we need something more than just an easy target. Maybe, instead of blaming cars for our environmental problems, we should take another look. Maybe it's not worth it to spend 5,000 (total guesstimate) calories on shippping a 50-calorie orange across the country. Maybe we should be doing things like supporting our local farmers and buying what's in-season and local. Maybe those farms should employ fallow strips to curb eutrophication in our water systems...and more importantly, maybe we should worry more about what human waste is doing to these water systems and try employing similar tactics to not disturb that balance. I'm sure that there are a hundred reasonable things we can start doing that will help us more than just blaming cars for all (or even most) of our ecological troubles...especially when immediate change is just not possible. Instead -- employ what change that you can individually...maybe this guy should take the time spent on bitching about cars doing something contructive -- I'll be he will accomplish a whole lot more.
However, when it comes to cars, the fact is that although we are all part of a larger community, and we are social beings -- humans are still highly individualistic creatures. This means that as soon as we had both personal transportation and mass transit, we figured out which one we liked better (hint: not mass transit). We like cars. Cars are a part of North American and European personal identity (can't speak for other continents...I haven't been there). Individual transportation will never be as efficient as mass transit...but when given the choice, I'll put dollars to dimes that 9 out of 10 would rather be isolated from everyone else, in a soft leather-clad vehicle, with the climate control set to their preference, climate-controlled seats...and with their music on in the background. Especially when you contrast the happy car experience to having to sit (if you're lucky...I had to stand msot of the time when I took the subway to work) next to some smelly, hairy guy on the bus/subway while he eats some weird (somehow smellier than he) meat-on-a-stick -- at the same time, some screaming freak is angrily walking up and down your car ranting about his violent experience in prison which just ended...just now. Hell -- I'd definitely take the former in a heartbeat.
-Turkey
And if they hadn't all died-off to make that miracle product crude oil then we would all be dead of asphyxiation.
Please invent a car that goes fast(100+ mph), is fun to drive, cheap to operate, relatively save, can haul my entire family around even in the snow and sand, and is affordable enough that I can own two. While doing everything that my SUV does, this future vehicle must not pollute. Please do this so I can buy one. Oh wait, I already own two SUVs that can do all of these things, and I don't really care that they pollute (I live in an uncongested area) so why should I buy a new car?
Anyway you need to make this new vehicle better than mine so I have a reason to buy it. Or maybe you should just get a law passed forcing me to spend the money now so that I have a reason to buy the new car and line the pockets of the lobbyists, politicians, and auto manufacturers for doing nothing of value. Let's further fuck up the economy by placing additional artificial restraints on the markets. Then we can all sit around and complain about how we can't afford anything because we all just bought new cars and couldn't get any value on the trade-in because it's worthless. And now that they are forcing auto dealers to pay you for your old car, the prices are outrageous. Oh, and since they gave the auto manufacturers incentives and tax breaks to lesson the burden on them and insure that they wouldn't simply quit the business, my already burdensome taxes have gone up. I sure hope those people who live on the other side of the country are enjoying the clean air I'm paying for. It's too bad they couldn't solve the problem on their own and had to make my family pay for it.
But please invent that car, I WILL buy one if it's better than mine. I don't want to pollute. I just don't really care that I do because there's no compelling reason not to.
One last observation: this is supposed to be news for nerds. Why do so many nerds want to solve problems by compelling the behavior of others rather than compelling the forces of nature?
Recent studies show that Solar Energy is grossly inefficient. Scientists at a leading University have determined that solar powerer 100 watt light bulbs use 590,000,000 tons of hydrogen for every hour they are on. Scientists do say that they efficiency will get better as we cover more and more of the earth with solar cells, however they doubt we will ever get to the equivalent efficiency seen with the 78 tons of plant matter to a gallon of gasoline. These results have led many to question the use of solar power.
> The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars.
if a day of driving consumes 365 days of plants...
a year of driving consumes 365 years of plants...
so we have another million years of driving to do before we've used up the 365 million years plants have been around
Q.E.D.
I have to think the environmentalists would be opposed to this idea. The idea that we really have a potentially *unlimited* supply of oil could keep them up at night with visions of the 28-wheel Hummer H5. :-o
--- Ban humanity.
Damn cyclists are certainly the fastest vehicles on that road (or rather, veering all over the footpath next to the road) at that time of day.
> The research paper also mentions that everyday, we are using the fossil fuel equivalent of all the plants growing during a whole year just for our cars.
if a day of driving consumes 365 days of plant life...
then a year of driving consumes 365 years of plant life...
then it will take us another million years of driving to consume the last 365 million years worth of plants life
Q.E.D.
Timmmmmmberrrrrr!
> My car my suck at 20 mpg, but I love my Lexus RX300 SUV. It rides VERY smooth,
> VERY comfortable, VERY luxurious.
> I can afford it easily, so why can't I have it.
I can afford the fine I would possibly get if I came up and pissed on your front door. It doesnt effect me in a bad way at all, matter of fact it effects me in a good way assuming I had to go before doing so.
But out of concideration for whos door that is, I would not, as would not most people.
You are not taking in concideration our planet, which is not yours, and no you can not afford.
I'm far from saying you should switch, or there are better (or really any realistic) other options right now, and I am glad to see you would change if there was another option, but your attitude not only is greedy/selfish, but the root cause why so few people are even looking for options, and thus why so few other optinos exist.
You know, a lot of people have been complaining about the slash and burn of the Amazon rain forest, but I think people are really just thinking ahead and trying to make more oil. You guys are so short-sighted.
...But I have to confess that I despise the fossil fuel economy. I hate smelly, filthy, unreliable and expensive cars, and I hate having only two choices to heat/power my home: Fossil fuels or electricity (most likely produced from burning fossil fuels), and I hate the fact that I don't have a clean, reliable and affordable alternative to put at least some of my energy generation into my own care.
As I face the prospect of having to pay another four-digit figure to heat my apartment this winter, I'm wondering when there will be something else available. And I laugh when I hear those radio ads for oil heat, "clean and dependable." Yeah, that's why a technician has to come to my house every year to replace furnace parts clogged with soot, change two filters, and wipe down the smelly black oil tank coated with a petroleum goo.
The novelty of personal transportation has long since passed for me. After a decade and a half of changing oil, replacing expensive parts to save money, dumping gas into the tank every week, replacing tires, paying auto insurance and making car payments almost equal to my rent, I'm ready for a change. I have an almost perfect commute: My office is within walking distance, but unfortunately the other campus is on the other side of town. I can't walk because I need to lug equipment around, and it would take too long to get from on side of town to the other.
I'm waiting for the new, cheap solar panels that will hit the market in the near future (I'm hopeful anyway). Although they appear to be another petroleum-derived product, It would be something I'd be willing to try even on a small scale; The missing piece of the puzzle still being storage. But I've done everything I can. Since de-regulation in my state, electricity prices have gone up 50%, and reliability has stayed about the same. I replaced every light bulb in my house with higher-efficiency fluorescent models. I don't leave the TV on, I don't run air conditioners in the summer, I only leave on a light in the room I'm occupying. My bill will not go below $60, even if I just sit and read under a 14-watt bulb during nights.
What I see when I go through towns in my area is a people stuck in a 1950s way of doing things. No one wants to change their mindset, even when the "advantages" aren't what they were. Now that everyone has a monster furnace to heat their 3,500 ft^2 American Dream Homes, they have to contend with the monster oil bill created by high demand. Now that everyone aged 16 years or old has a car, traffic is bumper-to-bumper on the Main Streets of every town, and auto insurance just goes up and up. I now consider it a major inconvenience to have to get in my car to go somewhere, and have to put up with all the traffic and road construction. Please spare me the "how else would you get there" argument; It's a tad too one-sided because there aren't any alternatives.
So I guess what I'm saying is: Even though I've been dismissive of environmentalism and environmental scare tactics in the past, I'm seeing (or paying for) the disadvantages first-hand, and I want change in my lifetime.
Fred
"A fool and his freedom are soon parted"
-RMS
Let's look at your argument: Since your (inexpensive) produce is grown in far-away places and brought to you, something must be wrong with the "market."
First, have you considered that it might not be feasible to grow the things you want locally? Ever grown citrus in a non-tropical climate like you've got there in Toronto? They don't do well in the cold and it often gets too cold even here in Florida: freezing weather harms the trees and can destroy the fruit. Now I imagine that huge greenhouses could be built to grow citrus and other tropical-climate crops in, but you'd find the cost of those greenhouses would have to be ammortized into the selling price of the fruit, and that fruit would be much more expensive as a result.
Manufacturers want to maximize their profits, that is true (think: maximizing return on investment, ROI). One method of controlling profits involves unit (car, banana, whatever) pricing. Most people versed in economic principles know that the price-profit curve is an upside-down saddle shape, sort of like a upside-down parabola. Extremely low prices mean no or even negative profits, no matter how many units they sell. Extremely high prices mean that nobody buys their products, and no profits are realized. By pricing their products optimally, or at the top of the "hill," their profits are maximized.
Another method of controlling profits is to control manufacturing and delivery costs. You seem to be proposing that manufacturing costs be traded for delivery costs: make things locally (lower delivery cost), no matter what infrastructure may be required (manufacturing cost).Here in the United States, many people bemoan the fact that many manufacturing operations have moved overseas, but we'll stick with agriculture products. By concentrating production of climate-specific crops in their natural climates, higher yields are grown for less money.
Sure: I could grow peaches here in Florida, but I'd have to do it indoors with a greenhouse I can cool to freezing weather for about a month (peaches need the cold weather to set fruit). You can grow oranges in Toronto in a greenhouse if you want. It's just not economically feasible to do so. Coffee and cacao only grows in areas like the mountains of Central America and West Africa, unless somebody pays to build a greenhouse that can simulate the high-altitude conditions those crops grow in. When's the last time you saw a Canadian-grown Macadamia tree or date palm?
1) It is MUCH more fuel efficient.
2) You can go between cars and ride in commute lanes
3) Since the tolerance for error is much lower, we could eliminate all the moron drivers on the road through survival of the fittest.... this would reduce pollution by reducing commuters.
I have been riding for a number of years and enjoy a healthier check book and the confidence that I am at the top of the vehicular food chain.
As an aside, we could take the courpses from the drivers that don't make the cut and turn them into fuel for the survivors.
So basically what you are saying is that everything we do creates pollution, in the name of profit [gasp!]. Which amounts to TWO HUGE EVILS [sound of children screaming].
They are ROBBING the planet
First to be robbed you have to be sentinent ie cappable of possesion, which unless you believe in the Gaia theory, the planet is not. (Note: If you do believe in the Gaia theory then I am wasting my time, you are beyond help) Which brings to the point who owns the planet? Well your religious types might say God. But I think that most people here will agree with me in the assumption that humans own the planet. (note for philosophically impaired, humans are made of induviduals, I did not say humanity. That would imply some sort of society ownership, and I am not a commie) So there are a bunch of people who own pieces of the planet and low and behold they are trying to make something of it. They are using (or exploiting) the land for many selfish and greedy causes. Pumping evil black liquid from the depths and then burning it in hellish furnices to provide gigawatts of energy to sprawling miles of 3 bedroom homes filled with children. Whew, I almost had an aneurysm comptemplating this evil situation.
I really want to rant, but I just can't take you seriously
> I don't see the point of this post. We will never run out of oil. Why?
Because we can't use up all the oil until we've used up half the oil, and we can't use up half the oil until we've used up one quarter of it, and
Sheesh, evil *and* a jerk. -- Jade
If you really want to do mother nature a favor get a car with an engine that gets 1MPG so that we can rid this beautiful earth of this horrible black oil forever!
And even with rough calculations... this means that we have enough oil at current rates of use to easily last for the next 100,000 years or so... Wow... Oil Makes Sense!!!!!!!!
I know I know, but it's not right for me to kill my planet.
Close, but wrong. It's not right for you to kill our planet. And oddly enough, for all your raving about your lexus suv (even though this is probably a troll), you don't even mention going off-road with it.
Helevius
Plants, faugh. I don't burn anything but the finest dinos in my Hummer.
Sheesh, evil *and* a jerk. -- Jade
And seats 6 comfortably. Thank you Subaru.
Fuck Beta. Fuck Dice
that is a old myth perpetuated by oil companies. there is no such thing as fossil fuels, anyone who thinks oil comes from dinosaurs is an idiot. Post the chemical reactions that show this is possible.
The metal from which the car was made existed as oxides and had to be liberated with the help of a lot of carbon - both for reducing and generating the necessary heat. This emits about as much CO2 into the atmosphere as the car will emit through its exhaust pipe during its entire usable life. Yes, some of that metal is recycled, but not all of it.
Stop worrying about the risks of nuclear power and start worrying about the risks of not using nuclear power.
But 40 acres of farmland sure as heck produces more than 115,000 BTU's of food calories. A BTU is heating 1 lb H2O by 1 degree F. A food calorie (kCal) is 1 kg of H2O 1 degree C -- rougly 4 BTU's to the food calorie, so there are about 30,000 food calories to the gallon of gas.
Figures I have seen are that you can grow 50-100 gallons of vegetable oil per acre in corn or cannola, and vegetable oil is 3000 food calories/lb or 12000 BTU's/lb: this suggests that you can grow 30-60 gallons of gas per acre energy equivalent.
Of course the oil pressed from seed is only skimming the cream of the biomass energy -- the real bonanza is if you could convert plant waste to methanol.
Technological savvy could turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year.
This brings to mind the old "cat and rat farm" idea my grandfather talked about. We never knew how to make the profit selling the cat skins, but now there is hope for this idea again:
1. Raise cats and rats.
2. Feed rats to the cats.
3. Feed dead cats to the rats.
4. Keep the cat skins.
5. Use the cat skins to make oil.
6. Profit!!!
GF.
Lots of petrified grits
According to Natural Capitalism by Paul Hawken, Amory Lovins, and L Hunter Lovins, only one percent of the gasoline that is used in a car actually propels the people in the car down the road. The other 99% of gas is taken up by inefficiencies and to move the actual car down the road.
In a word, NO. Welcome to the world of economies of scale. Cans of tuna are not delivered from the packing plant to your grocer's shelf individually in personal automobiles. They're packed into flats that are loaded onto pallets that are then carried by ship and/or truck to the final destination. Although road tractors don't get stellar fuel economy, they carry a massive amount of cargo and the transportation costs are divided among the entire payload.
For that matter, here in the US, a first-class postal letter costs $0.37. According to your logic, a postal carrier picks my single letter out of my mail box, drives it all the way to California, or where ever, and delivers it to the destination mail box, all for $0.39.
You are! All costs associated with bringing the product to the shelf, plus the fraction of the operating expenses for the store (personnel, electricity, insurance, etc) for you to buy are wrapped up in the purchase price!
From the article- "makes you think about how inefficient our cars are"
Umm, just pointing out how many tons of plant matter went into making a gallon gas is irrelevant to how efficient cars are- unless someone can engineer a car that will start manufacturing gasoline more efficiently from plant matter.
The efficiency of cars is only determined by how much of the available energy in the gasoline is put into useful work in the car. Figuring out how much plant matter went into producing the gasoline is a measure of the energy efficieny of the natural process that made the gas, not of the vehicle.
-Phat Tony.
Can anyone tell me how to set my sig on Slashdot?
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
No. It makes me think of how inefficient plants are. If plants contained more chemical engery, they would make more gasoline per ton. Plus, it's not like the only product of these 90 tons of plants is the gas. Refining gasoline from crude oil produces a number of other outputs (plastics, etc.)
It's possible to produce oil from other sources, such as coal or some kinds of shale (or in the ultimate extreme, pure synthetic). It's simply more expensive to do this than it is to pump it out of the ground.
Hence, once the price of oil reaches a certain point, it'll simply be cheaper to make it some other way. And the conversion costs based on, say, coal aren't really very prohibitive at all, so the people who can afford a 7mpg SUV probably won't stop driving it in the least.
Of course, it should be rather clear that this isn't exactly a good thing, since this means that the environmental damage from fossil fuel emissions has no end in sight. But it is clear that the world isn't going to grind to a halt any time soon.
Of course, at some point, it won't be a net energy win to use fossil fuels (purely synthetic production clearly will require more power than you get out, for example), so we'll have to transition over to other more sustainable and cleaner sources of power such as nuclear fission, solar, and geothermal.
The whole point of the article was that using raw plant material as fuel (whether you do so inefficiently using fossilized plants or more efficiently using current biomass techniques) would require such vast quantities of plants that you'd have to choose between eating and driving. I don't think we can afford to "try it and find out".
Sean
YEAH BIODIESEL BABY.
Im looking at a 1 ton ford pickup with a diesel and plan on setting up my own little biodiesel production facility. $.60 a gallon, harmless emmisions and a big truck to pull all my toys. I just love the idea that I can drive a gigantic truck and do less harm to the environment than your typical gas commuter car. THATS TECHNOLOGY!
MIke
thank you. great post. people get so histerical about "running out of oil". its such a pointless thing worry about.
i would also like to point out the hipocrisy of liberals who want to mandate the use of alternative energy sources and at the same time are constantly preaching and worry about the 50% of children living below the poverty line or whatever the latest rediculous statistic is. alternative energy is going to cost more for the consumer. and that becomes yet another hurdle for the poor to get to work. let the markets work out these things. government can never allocate resources as efficiently as the market. i also think its arrogant that big government advocates think they know better than the average person how to spend that person's money.
They're sequestering carbon that would otherwise be adding to the greenhouse effect. Burning them pumps all that CO2 back into the atmosphere.
Sean
Allah preserve all the nations of the world that are currently squatting on America's foreign oil reserves. I'd call 35mpg reasonable, I'd want 40 upwards.
Just because you can get monster trucks masquerading as family cars that are appalingly inefficient doesn't make it reasonable to settle for fairly inefficient as an average.
You can help to change US foreign policy by change your assumptions right here and now. Yes, you over there, I'm watching you.
If you were blocking sigs, you wouldn't have to read this.
But he didn't stop there. He started utilizing his environment to better his way of life; cutting down trees to build structures and mining metals from the earth to makes things. Was that too far? Should he have stayed in caves and settled for what he could fashion from flint.
Was a horse drawn buggy not good enough for man kind? Couldn't we still do business at the speed of how long it took you to get from settlement to settlement? Horses don't eat that much do they?
What about trains? Should we have stopped there? Sped things up a lot but from what I've seen in western movies they produced some awful black smoke. Was that okay? Should we have stopped right there......farms, saloons, whore houses......what more could we have needed? If we have stayed like that how many more years till the world ends would we have had?
What about the first automobiles before mass production? Should we have stopped there? Personal transportation.....it seemed harmless enough. How many more years would we get back from dooms day if Henry Ford had not started producing cars on an assembly line?
What about flying? Should we have left that to the birds? Those big planes......I've seen some pretty mean exhaust coming from them. How much longer could my great, great, great, great, great, great grandchildren live if they weren't spewing Jet-A fumes into the air?
Why is the SUV to blame for destroying the earth? The average fuel economy was in the teens in the '70's way before the arrival of the SUV. Was that okay? The bottom line is, unless you're part of the Imbuti tribe in Africa, pretty much everything that you do contributes in some way to pollution. How much pollution was produced as a result of manufacturing the computer you're on? Was that an acceptable level? What about geeks with several computers.....is it still acceptable? What about that bicycle you ride? Where did the Chrome-Moly come from to make the tube frame? From a big 'ole polluting factory. Is that okay? If everyone were riding bikes instead of driving how many more years would we have to live? Is that enough? What about that Frisbee you toss around on your lunch break.....I bet it's made of plastic. Is that okay? Plastic is a petroleum by-product......but Frisbees are so much fun aren't they? How do you stay warm in the winter? Don't heaters seem like a waste of natural resources? Shouldn't we just put on another sweater? But you have to stay warm.....staying warm is okay right? How many more years would we get back if we only used natural resources for heat? What about all the goods that you've ever purchased in a store. Wouldn't it have been better to have gone and gotten them in your hybrid/electric car instead of them being delivered from factories by those polluting 18-wheeling monsters? You could pick up more in your SUV and save several trips. Would they be okay then? If we used them instead of semi tractor trailer rigs.
At what point was it too far?
-- Probability does not dismiss possibility --
Ah, but can you really afford it? Or have some of the costs been hidden (or transferred to others)? The only time I can really take the environmental lobby is when they stick to the basic fact: The total cost of many items is not accurately reflected in the price sticker -- if we correctly apportioned costs, everyone would become "environmentally conscious" because it'd be the obvious selfish thing to do...
The Mongrel Dogs Who Teach
The key is that prices for energy are going to rise - and the equilibrium price for energy is likely to be high enough to force significant changes in Western lifestyles.
If the price of gasoline has to rise to $5.00 (USD)/gallon before these alternative energy sources become viable, that's going to put a significant cramp in people's style. That's the "so what".
Sean
I guess this puts an end to the bio fuels (ethanol, bio-diesel, etc.) solution. If we burn more in 1 day than plants produce in a year....
A traditional 100 watt light bulb gives out only 5 W of visible light. I hope you didn't mean this when talking about inefficiency. Fluorescent lighting is much better, I'm right now using a bulb replacement that consumes 20 W but gives the same light as the aforementioned bulb.
Escher was the first MC and Giger invented the HR department.
============
Together, we will drive the rats from the tundra.
Because ethanol can mix with water and become useless, it can't use the same kind of pipes and infrastructure as oil. A small amount of water seperates from oil so present day oil pipage isn't perfectly dry. Ethanol would require a much dryer piping and pumping system.
If this wasn't so, ethanol would already be part of the system.
More oil and meat for me! Thanks.
Anyone have a stat for how many tons of corn it takes to yield a gallon of ethanol? It'd be really interesting to see a direct comparison of the next closest competitor to oil.
You see? You see? Your stupid minds! Stupid! Stupid!
Moderator on Crack alert! Why is the parent post modded Troll? I'll use my bonus to get it visible again....
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This is NOT reasonably efficient. 25 MPG is horrible and should be the absolute minimum allowed to be manufactured. No automobile company should be using the "we can't make safe cars that are efficient" excuse. They don't care about safe, they just care about cheap and high margins (SUV loving morons).
My old "reasonably efficient" just-shy-of-midsize 4 door from 8 years ago got 32 MPG mixed driving, 35 highway (real numbers, not listed). My "truly efficient" hybrid gets 52MPG mixed, 58 highway (again, real numbers).
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Hey kids, there's only 5 days left 'til Yak Shaving Day!
it should be up to the individual consumer whether they want to purchase a product and whether it is the best use of their money or not. its elitist and arrogant to think you have some special ability that allows you to decide what someone else should or shouldn't buy. even if it is a low quality product, this is supposed to be a free country and individuals should be free to make choices even if you happen to think they are the wrong choices. what can be more free or more democratic than letting people vote with their hard earned money? who is going to spend money on things they don't want or don't agree with?
It was so dirty that a tree had actually taken root, and was actively growing in the dirt stuck in the door jam.
kill yourself.
Bring on the teeth knocking my good man.
Most cars in the US run on 87 (or even 86) octane fuel. Most filling stations only offer 87, 89, and 91 octane. A few stations will have one pump with 93 for hot rods. Anything higher usually requires a specialty supplier or cans of fuel additives.
I mention this because I gather that cars in Europe generally use higher-octane fuels. (Unfortunately, US and European standards for computing octane numbers are different - I don't know how to compare the numbers directly.) Certainly, the Audis, Benzes, BMWs, Jags, VWs etc. exported to the US generally require the highest-octane (91) gas generally available here, yet they're often less powerful than the European versions. Using higher octane fuel allows higher compression ratios in the engines, which can help achieve higher MPG ratings. However, more crude is required to refine a gallon of high-octane than a gallon of low-octane. So the MPG figures for cars designed for 91 octane and 87 octane aren't comparable, if petroleum consumption is what you're trying to compare. The high-octane cars will look better than they really are.
All that said, though, the US's energy policies and taxes are admittedly, indefensibly, and completely insane. There's no question that we burn way, way more gasoline than is remotely necessary. As a single commuter, I am among the guilty. But I, for one, would support higher fuel taxes - the true cost of the car culture isn't reflected at the pump, and it should be.
who cares about all this polution junk. We will all be dead one day anyway so I will keep driving my big truck and my wife can keep driving her big SUV. If these greenies don't like it too bad. I think if some of them would actually take public transportation instead of just talking about it they would think differently.
The phone is ringing, I cannot linger, watch out butt here comes my finger.
If you ask me, the real problem is that plants aren't very efficient in making fuel. As usual, the tree huggers have to put there 'pro plant' spin on everything. Once we get rid of all the stupid green leafed things we can hopefully start using something a little more efficient in making gas for my SUV. The only thing keeping me from running over all the tree huggers is that their stupid plants make crappy fuel and I run out of gas.
While your facts presented may be accurate you are making false assumptions. Cows are raises for their offspring, not their meat. Most meat comes from steers and heifers. For a realistic value you should be looking at the age that heifers and steers are slaughtered, and how much a calfs, steers and heifers eat. Like most /.er's your probably don't even know the difference between a calf, cow, heifer, steer, or a bull.
I think you mean that 50% of the consumer's fuel bill goes to taxes, not that the tax rate is about 50%. The total tax rate for gasoline in the US hovers around 100%, doubling the cost and thus comprising half of the total cost. But I guess we all knew what you meant, and that's what's important.
Frankly, since that level of taxation doesn't even cover the construction and maintenance of the roads, let alone related costs like traffic police and health care for accident victims, I'd say it's much, much too low. Cars are, in the US, a government-subsidized and money-losing transportation system - Socialism incarnate. I think that's what's meant by "flat tax" in this case - a large portion of the bill is hidden in other taxes, which do not vary based on road use, and are therefore "flat" relative to the project they fund.
"Save the dead, fossilized plants!"
"Save the dead, fossilized plants!"
Whiny losers.
That's nonsense; the rationale is pure nonsense that because 98 tons of prehistoric material is needed to make a gallon then our cars are inefficient. The internal combustion engine, with a century of technology refinement behind it, is considerably more efficient than anything else, just consider why there hasn't been alternatives to it yet.
That prehistoric gunk is there whether you choose to use it or not, it's underground and an available resource to use, not using it would be a waste. Just consider that before oil people used to use coal, and some say if demand exceeds production in oil a return to coal might be prompted, consider then what effect that'd have on the environment! Or would you prefer "nucular" energy!
I don't like the dogma about oil!
Fuel taxes pay for road construction and maintenance, at least here in the United States. Those taxes are paid (directly) by the shipping companies that operate the trucks and are an operating expense (cost of doing business). Those operating expenses are calculated into the freight charges paid by those shipping goods (oranges, whatever). Shipping charges are an operating expense for the producer that's built-into the wholesale price of the goods we buy, and therefore are automatically part of the retial price.
I can't say it much plainer: consumers pay for everything!.
Fuel is not "wasted" sending apples from California to Ontario. Simple physics tells us that to perform work, energy must be expended. That fuel is doing useful work propelling apples across the continent! This is the most unreasonable argument I think I've ever heard: performing a useful activity is now "wasting!"
Here's a question for you: what cost-effective and economically-viable alternative method do you propose for providing the people of Ontario with apples?
Carnot efficency is (Th-Tc/Th)*100. At a combustion chamber temperature of 2500F and an exhaust temperature of 1700F, ideal efficency is 27%.
Facts do not cease to exist because they are ignored. - Aldous Huxley
You are right. We don't know the true cost of your $0.77 can of tuna.
But I will tell you one thing: it's less than $0.77!
Only the insane would willingly and intentionally sell their product at a loss. I don't see any reason to believe that StarKist, Chicken of the Sea or any other tuna canner going out of business anytime soon; they must be making money selling their products. Ya can't make money selling things for less than it costs to produce them!
Perhaps IHBT. HAND.
Several posters have countered with the suggestion that mother nature is inefficient, using so much plant material to make so little fuel.
But, both the "cars are inefficeint" and "nature is inefficient" arguements miss one important point: That the huge amount of biomass was spread out over millions of years of growth, with the vast majority of the material being recycled from one growth generation to the next. Obviously, just by virtue of the fact that a gallon of petrol weighs a lot less than a small forrest, we must conclude that most of the material didn't become fuel. Most of it became fertilizer/compost, and fueled the next generation of growth.
Adding up the mass of all these generations of plant growth is really just repeatedly counting the same material over and over.
You know, it constantly amazes me just how little people know about agricultural history.
Cows do not, and never have, existed "in harmony with their natural environment". Animals which people today would recognize as "cows" did not exist prior to about 6,000 to 8,000 years ago. We (humans) made them. We bred them from, now extinct, animals called aurochs.
Same with grain crops like wheat. What we today call "wheat" is a plant that simply would not be able to survive without humans. They are a mutant strain that does not shed its seed kernals when they are fertile. This is good for us (we can harvest the grain and eat it), but bad for the plant (no seeds on the ground to reproduce).
Almost nothing we eat today existed prior to about 10,000 years ago. We humans bioengineered it all: wheat, rice, apples, corn, cows, etc, etc, etc. Yes, I'm sure you can find a few food staples that exist in the wild, but they are few and far between.
There is debate on whether oil even comes from ancient plant matter. Scientists have made oil from granite, water, and immense pressure in the lab, they think that the oil we use today could have just as easily been made by that process than by the decay of plant matter, maybe even more easily.
"Even if these numbers are too large, this still makes you think about how inefficient our cars are."
I say its the prehistoric plants that were inefficent, afterall many of them are extinct meaning they were unfit for life on earth and it takes for friggin tons of them just to produce the energy to move a car one mile. 4 tons, if something has to be that big(and or dense) to power one car for one mile its really inefficent weight wise.
Repeal the 17th Amendment TODAY! Also Please Read http://www.gnu.org/philosophy/right-to-read.html
OK. This is a BAD practice.
1st Soybeans are terrible for the soil.
2nd We are converting farmland back into forest in the US and if we met domestic demand for diesel through vegetable oil we would be back to deforesting and depleting. Bad idea.
A far better option seem to be CWT
These guy say they can change any carbon into distilled water, balanced organic fertilizer and gasoline. This also has the benefit of getting rid of biohazard waste and increases topsoil rather than depleting it.
Well what do you expect if your still using the same basic engine 100 years on. Cars are very badly designed machines, just look at the clutch - 2 spinning disks grinding against each other every time you start or change gear they wear down abit. Sitting in traffic jams and moving an extra 3 meters every 2 minutes have you ever stopped to think how utterly and totally pointless that is? all that work just to move a large piece of metal 3 meters so it can sit there for another 2 minutes wasting more energy.
;)
As geeks everyone here should understand this and feel it everytime they're in a car, would you run a program on a BASIC interpreter that was running on a JVM that was running on a Windows OS emulation on a Mac OS 9 emulation on Mac OS X that was running on emulated Mac hardware on a PC? no, because that would be bloody ineffecient and would make you feel like strangling yourself (would be impressive tho
This comment does not represent the views or opinions of the user.
We have what, 40 million years of fossil plant growth and we're burning, daily, the present one-earth-year equivilent/day? 40,000,000/365 or
roughly 100,000 years worth to burn and we're only just starting our 2nd hundred years with the auto. Put that in your pipe and smoke it with some vegetable matter. Big numbers....How many of you bozos know anything about carbon dioxide cycles on the planet anyway? How many of you are arrogant enough to think you'll be around in 99,900 years to burn the last drop of fucking oil, let alone still have anything resembling technology beyond a
toothpick.
With regards to the above discussion about wastes and the carbon cycle, I thought it might be interesting to provide some numbers in order to provide a bit of perspective.
In 1996, the US used 364.6 million tons of oil.
source
In 1996, the US also generated 209.7 million tons of Municipal Solid Waste, of which 38% was paper, and 13% was yard clippings. source
So it can be seen that the amount of solid, burnable waste which is generated (in municipal areas alone) in the US is the same order of magnitude as the amount of oil, in terms of approximate carbon weight. Interestingly, 30% of that waste was burned in incinerators, adding to our net carbon into the atmosphere. It would appear that if the carbon were converted to a more useable form and burned in place of petroleum, then yes, we could operate in a carbon neutral economy.
Of course, for ~real~ big numbers in energy, look to the atmospheric water cycle. (1.2*10^24 J/year transferred; equal to 2.26*10^14 barrels equivalent/year)
...to me is that whichever side I choose, I'm considered a moron by the other side. I suspect I'm like most people in this. I don't understand all the economics and science behind the issue, so I try to go middle-of-the-road...and get called a moron by both sides.
And every argument uses the worst-case scenario...People aren't just driving gas guzzling SUVs, they're driving Hummers. Environmentalists don't just want to close down polluting power plants, they want us to live like frickin' cavemen!
So, I guess for now I'll just continue driving my Tacoma to work. But I'll worry a bit too.
I'm not a nerd. I'm just here for the free food.
I can assure you that every Hummer I got was well worth the energy.
I think we should all look beyond the fossil fuel issue here, and the semantics of how these numbers might be "fraudulent" and how everyone else is "ignorant." Bottom line is that we're a world based on fossil fuels. And yelling at people who buy large SUVs is the cliche thing to do recently, but it does little to nothing to help. Nobody regulates how far you drive, or how often you drive, because it's up to you to pay for it. If your conscience pushes you to not use fossil fuels, good for you. You're the vegan of energy usage. You can't guilt a society into fundamental change.
As human beings, we're plenty smart. When the time comes to adjust our energy uses to something new, we'll figure out a way. But there's no use wasting all of our own time, energy, and effort bickering and arguing and lobbying to kick the guy out of his SUV. My co worker drives 86 miles one-way to work, 5 days a week. I drive 12. But if I had an SUV, I'd be "evil" and the "wasteful American." Well, good for you. Go do your own research, and save your own gas money.
"No fair, you changed the outcome by measuring it!" - Professor Hubert J. Farnsworth
Burning the fuel requires oxygen generated by living plants. What quantity of living plants is needed to provide the oxygen for the combustion? If hydrogen is created by a process other than water electrolysis, it will also need as much oxygen to generate the same amount of energy.
There is no shortage of energy. There will never by a shortage of energy until the Sun goes nova...
Sorry but that is a ridiculous statement. A shortage is when demand out strips supply. While large amounts of solar energy are incident on the Earth the present demand is truely staggering. US Energy Consumption in 1998 was 94.27 Quadrillion BTU or 9.945x10^19 Joules. 80 percent of it came from fossil fuels. This is effectively solar energy that has been collected and stored by plants over millions of years and concentrated by geology over billions of years. Once it is gone it is gone for ever and we will be forced to survive (on try to anyway) on much less concentrated energy sources.
Solar power isn't even an energy source at the moment. More energy in fossil fuels and human effort is used to make a solar panel than it will ever collect during its lifetime. Economics is no more connected with the real world than Monopoly. The only true measure of an energy source is the ratio of the energy it produces over the energy expended to get it. Oil runs out as an energy source when it takes more energy to get it out of the ground than it will yield when burned. That ratio has fallen from around 100 to less than 10 as the most accessible oil has been tapped.
Not all energy sources are the same. Even physically indentical barrels of oil are not the same. A 1930's barrel of crude from Texas that shot out of the ground when a small well was drilled is a vastly superior energy source to present day oil than must pumped up or forced up by blowing steam down because the net energy yielded is much higher. Globally the amount of energy produced per capita is already falling and has been since 1979. Soon overall energy production will start falling as well.
Once it does start falling there isn't going to be the spare energy available to invest in building vast numbers of wind turbines or solar panels. Renewable energy involves a huge up front investment in energy that is only payed back if at all over decades. Even with technological improvements it is never going to have the 100:1 energy return ratios oil had and it will at the very best allow a steady state. The energy production growth of 8 percent a year seen through most of this century will be a thing of the past. Since modern argiculture is so dependent on oil and as many as 5 billion people are alive today only because of the extra food mechanized agriculture allows the future does not look all that rosey.
Only an idiot would believe that windmills and solar panels can run bulldozers, elevators, steel mills, glass factories, electric heat, air conditioning, aircraft, automobiles, etc.
Who said anything about soybeans? Any plant that produces oil can produce transportation and heating fuel. It doesn't even have to be a wonderful nitrogen fixer like soybeans. (I would disagree they're "terrible for the soil.") Or you can alternate nitrogen-depletors like corn with beans, getting two oil crops that complement each other's soil use. (I grew up on a farm, so please don't tell me what is good or bad unless you can claim the same.)
"We are converting farmland back into forest in the US and if we met domestic demand for diesel through vegetable oil we would be back to deforesting and depleting. Bad idea."
First, I would argue both that we are NOT "converting farmland... to forest" in any significant quantity, and also that any resulting "managed" forest is no better than farmland with respect to environmental factors.
I never claimed that we should get all our transportation needs from farm crops. Indeed, if you re-read what I wrote, I was advocating using WASTE cooking oil. How you got from there to "soybeans" and "farmland" is beyond me.
"A far better option seem to be CWT. These guy say they can change any carbon into distilled water, balanced organic fertilizer and gasoline."
Well, I couldn't find any place where they claimed that!
Their process seems to consume unspecified hydrocarbons and produces various hydrocarbons. It appears to be energy- and water-intensive, with lots of heat and pressure required. It is unclear exactly what the feedstock is and exactly what the result is, except that it consumes a great deal of water and energy in the process.
A hydrogen energy economy is decades away. Vegetable oil diesel can serve as an important part of a transition away from fossil fuels. This can be done with today's technology -- indeed, in a handyman's garage -- using a waste stream that is currently a disposal problem.
Just don't tell me it can't be done, or I'll have to un-drive all those miles I've driven, powered by waste vegetable oil!
: What Constitution?
Seems to me this speaks more to the inefficiency of the natural process to convert plant material to crude oil than it does to the inefficiency of automobiles.
BioDiesel is really just vegetable oil, which burns pretty well and is a fairly dense energy storage medium. It is not as powerfull as petrolium diesel or gasoline, but it is in the ballpark. There is no need to compress it so much that it turns into petrolium oil, and I expect you would expend a great deal of energy in that unneeded process.
The 150F and 20psi quoted in the earlier linked article are just for extracting/refining the oils.
Don't moderate flamebait as Troll. Know the difference or you will be Meta-moderated.
I may be stretching things a bit when I say "research". Here is a fledgling industry that turns pounds into gallons, not tons:
Not just research
"In transportation, the ox cart and the rowboat represent the first stage of technology.
"The second stage might well be represented by the automobiles of the middle twentieth century just before the opening of interplanetary travel. These unbelievable museum pieces were for their time fast, sleek and powerful -- but inside their skins were assembled a preposterous collection of mechanical buffoonery. The prime mover for such a juggernaut might have rested in one's lap; the rest of the mad assembly consisted of afterthoughts to correct the uncorrectable, to repair the original basic mistake in design -- for automobiles and even the early aeroplanes were "powered" (if one may call it that) by "reciprocating engines".
"A reciprocating engine was a collection of miniature heat engines using (in a basically inefficient cycle) a small percentage of an exothermal chemical reaction, a reaction which was started and stopped ever split second. Much of the heat was intentionally thrown away into a "water jacket" or "cooling system", then wasted into the atmosphere through a heat exchanger.
"What little was left caused blocks of metal to thump folishly back-and-forth (hence the name "reciprocating") and thence through a linkage to cause a shaft and flywheel to spin around. The flywheel (believe it if you can) had no gyroscopic function; it was used to store kinetic energy in a futile attempt to cover up the sins of reciprocation. The shaft at long last caused the wheels to turn and thereby propelled this pile of junk over the countryside.
"The prime mover was used only to accelerate and to overcome "friction" -- a concept then in much wider engineering use. To decelerate, stop, or turn the heroic human operator used his own muscle power, multiplied precariously through a series of levers.
"Despite the name "automobile" these vehicles had no autocontrol circuits; control, such as it was, was exercised second by second for hours on end by a human being peering out through a small pane of dirty silica glass, and judging unassisted and often disastrously his own motion and those of other objects. In almost all cases the operator had no notion of the kinetic energy stored in his missile and could not have written the basic equation. Newton's Laws of Motion were to him mysteries as profound as the meaning of the universe.
"Nevertheless millions of these mechanical jokes swarmed over our home planet, dodging each other by inches or failing to dodge. None of them ever worked right; by their nature they could not work right; and they were constantly getting out of order. Their operators were usually mightily pleased when they worked at all. When they did not, which was every few hundred miles (hundred, not hundred thousand), they hired a member of a social class of arcane specialists to make inadequate and always expensive temporary repairs.
"Despite their mad shortcomings, these "automobiles" were the most characteristic form of wealth and the most cherished posessions of their times. Three whole generations were slaves to them."
--Robert Heinlein, The Rolling Stones
Frankly, the article and this whole post has very little to do with the actual problem.
The real problem is hypocrites who are unhappy and lazy. They all want a problem solved, but are unwilling to do anything but complain. That's not a solution. It's arrogant. Arrogance will NEVER solve the problem. If you think anyone will listen, you've got another thing coming.
Who likes a whiner? Seriously. Anyone? Who joined up for the Ariana Huffington fan club? Anyone?
Let's look at Ariana's lifestyle. Limousines, private jets, mansions. Until she starts riding a bicycle or riding in a rickshaw, I don't want to hear her preaching about SUVs or electric cars. I don't see her "living the solution."
As for this post, 99% of the people who complain, but yet still live a lifestyle that doesn't go anywhere near solving the problem.
The people who wrote the article and performed the "research" drive cars. They fly in airplanes. They buy cars, plastic, etc. Sure, they go down to the local market and buy "organic" foods. Once a week, they recylce glass, plastic, and newspaper. Wow!
These people are all hypocrites who are unhappy with the world around them yet are unwilling to do what they suggest.
What stocks do these people own? What investments do these people have? I suspect that that a lot of these people would be embarrassed.
I have a message. Spin the numbers as much as you want, then whine, complain, kick and scream, but until you are a living example of the solution, you are a hypocrite, and your message will fall on deaf ears. In addition, until you publicly disavow any connection (financially) with any company that benefits from the use of non-renewable resources (oil, coal, natural gas, etc.), I will not respect anything you have to say.
-- No sig for you!
The only problem with the article is that oil is not a product of prehistoric plant material - it is instead derived from materials incorporated in the mantle at the time of the Earth's formation. See http://people.cornell.edu/pages/tg21/usgs.html
9/11 Eyewitnesses to Explosive WTC Demolition 1 of 2
Even if these numbers are too large, this still makes you think about how inefficient our cars are.
Let me rephrase part of this thread's introduction:
"Users of solar energy require an energy source roughly 333 000 times the mass of the Earth simply to operate -- and most SE powered devices are incredibly inefficient."
Cars have nothing to do with how much prehistoric plant matter is necessary to create a gallon of gas -- especially since petroleum was around long before humanity was.
You want to know who isn't running Firefox 2.x? They spell it "definately" and "rediculous".
I know there are hidden costs. Fuel, oil changes, service repairs, yearly registration fees, emissions test, car washes, etc. Again, I've had these fees with my other past vehicles, it's nothing new.
At the end of the day, cars don't blow up, Starsky and Hutch notwithstanding. Think about the times you've rubbernecked or read the paper; how many times have you seen a car get really badly mastered, medevac, extraction, etc. Now compare that to how many times you've seen one of those things actually blow up, movie style. The Ford Crown Vic and some of those side-saddle-tank - pickups being the exception.
I'm pretty confident that they'll be able to generate a non-exploding hydrogen tank for motor use, especially since hydrogen dissipates so quickly.
http://urbanlegends.about.com/b/a/033774.htm
Disinformation.
OIL is not a fossil fuel.
That figure proves why it can not be a fossil fuel.
Look here..
http://www.gasresources.net/
The vested interests don't want this known so it is ignored. Especially by "greens" NWO!
You are assuming that crude oil comes from prehistoric plant matter. Some people believe differently...
As a professor Benniger once said - "If you're feeling low energy - blame the plants. They're the ones who are worst at converting one energy form into another."
I think it was because they only convert something like 1% of sunlight to stored energy.
Better plants - problem solved.
Ted
Seuss - I'm telling you this 'cause you're one of my friends. My alphabet starts where your alphabet ends
No, it makes me think of how inefficient our plants are.
--
"Karma can only be portioned out by the cosmos." - Homer Simpson [1F10]
So who cares that we are burning up all the oil? What else are we going to use it for? Once its gone, I'm sure there will be more of an incentive to find other energy sources.
By the way, a few years ago, a reporter went out to see Edward Abbey for an interview and was surprised to see him driving a gas-guzzler.
The reporter asked him why he was driving it.
He replied that the faster we used up the gasoline, the faster we'd be back to horse and buggy.
Many environmentalists and not a few posters to this thread noted the hidden costs of cars -- pollution, asphalt wastelands, and urban sprawl are real problems not bundled into the price of cars and gasoline. But nobody talked about the hidden benefits of cars to society. High-speed time-efficient personal transportation both reduces the personal cost of consumer goods and provides a better workforce to companies.
Driving gives employers access to a much larger pool of potential applicants and people acccess to a much larger pool of employers. An article a few years ago in Sci. Am. noted that the average daily commute for people is remarkably the same across time and cultures. Its usually about 15 min to 1 hour each way whether you walk, ride a horse, take a bus, or drive. With a constant commute-time, a doubling of the speed gives a 4X increase in area (and a car is usually twice as fast as mass transit in most, but not all, locations). This greater pool of applicants and job opportunities means that employers find better people and people find better jobs. Imagine if you had to find a job within walking distance of your house -- it would probably suck.
Driving also lets people buy a much wider selection of low-cost consumer goods. Rather than be forced to pay high prices at cramped neighborhood stores, people can find a wider selection of goods at low prices at the big-box stores built on low-cost land at the edge of town. As much as people hate the big corporate retailers on a spiritual level, they love to shop at them. The car makes that possible.
Cars may suck at energy efficiency, but they are vastly superior at time-efficiency -- taking people, their kids, and cargo from any point to any point in the least time. In this day and age, it is labor costs that dominate the equation on both a personal and global-economic level. Until they invent a scheme that lets someone go from work to the store to the kid's school to the kid's after school activities and to home in one fast, easy, wait-free process, the car will continue to dominate.
I'm not even sure how to estimate the economic benefits of 4 times the worker pool or access to low-cost goods, but I'd bet that some economist has estimated it someplace. So whether car and gas are underpriced or overpriced in the bigger scheme of things is unknown.
BTW, for the record, I'm not some assUVhole in the lane next to any of you. I don't own a car and my commute the less than 30 seconds.
Two wrongs don't make a right, but three lefts do.
I was pointing out that the sun burns roughly 700,000,000 tons of hydrogen every second and yet we are only getting roughly 450MWatts from it. Do these numbers mean much? No, but does the fact that it took 78 tons of vegetation to produce a gallon of gas mean much more. I don't think so. There is a lot of energy stored up in fossil fuels and we currently rely on it. We know it will eventually go away and we are working on means to eliminate the huge needs we have. I am pretty sure that most alternate fuels we can currently produce are not as "inefficient" as that so I think the only real use of this info is possibly as a question on a trivial pursuits card.
It takes 26 lbs. of corn to make a gallon of ethanol, with the benefit that we're only using solar energy that would have hit the earth in the same year, and not adding net carbon dioxide to the earth, as burning stuff out of the ground does.
It takes a lot of energy to produce ethanol. Either you're burning fossil fuels (increasing net CO2 emissions), or you're burning a lot of your potential ethanol. Did you actually read the article you linked to three posts up?
"According to the research from Cornell, you need about 140 gallons (530 liters) of fossil fuel to plant, grow and harvest an acre of corn."
So the acre of corn which produces 328 gallons (1241 liters) of ethanol requires burning 530 liters of gasoline (or 795 liters of ethanol) just to grow the corn. There goes 64% of your energy right there. By the time you factor in energy spent to distill, transport, and sell the ethanol, I would not be surprised if the whole exercise ended up as a net loss of energy.
Ethanol as a motor fuel is a crock. In the long run, we need practical fusion or orbital solar stations and electric or hydrogen-powered transportation, and in the short run, thermal depolymerization is a better process for turning organic stuff into fuel.
0 1 - just my two bits
>Who said anything about soybeans?
According to the USDA, the total world consumption of major vegetable oils in 2000 was:
Soybeans 26.0 million metric tons (MMT)
Palm 23.3 MMT
Rapeseed 13.1 MMT
So domestic veg oil equals soybean oil, not much palm or rape in the US.
>First, I would argue both that we are >NOT "converting farmland... to forest" in any >significant quantity, and also that any >resulting "managed" forest is no better than >farmland with respect to environmental factors.
Ok here you are just flat wrong. The US is the only country in the world that is converting farmland back into forest. That's why Bush wanted to get carbon tax credit.
You are right that it is managed forest but saying that "any resulting 'managed' forest is no better than farmland with respect to environmental factors" is insane. I grew up on a tree farm that used to be a dairy farm. Our tree farm is a managed forest that produces cottonwood, oak, ash, Douglas fir, yew, cedar, and western white pine and is not a monoculture, uses local genetics, and uses treated sewage for fertilizer. We improve riparian and sylvan habitat and generally kick ass.
>Well, I couldn't find any place where they claimed that!
Keep reading. It heats water, resulting in steam, which when condensed or cooled is distilled water. The solids generated by the process (they claim) are a balanced organic fertilizer.
You say the process is "water intensive" but all the water is recovered from the process. Also you claim the process is "lots of heat and pressure" but lots in this case is relative. Geological heat and pressure vs. industrial. Yes it high heat and pressure compared to room temp. but low heat compared to other processes currently used to dispose of biological wastes.
Your only real objection here is "Just don't tell me it can't be done, or I'll have to un-drive all those miles I've driven, powered by waste vegetable oil!" This can be reduced to cognitive dissonance, because you have invested a great deal of time and effort into and idea, you are unwilling to believe that it can be flawed. Bio-diesel is a good idea but it would not work if scaled to mass use. There isn't enough cooking waste oil in the use to power our cars. CWT's process works because it draws from a MUCH larger pool of resources, e.g. all the pig shit, cow shit, tires, human shit, ag waste in the US.
Not.
I'd call myself a liberal, but I really don't think we need to be all that concerned with the massive amounts of ancient flora that had to die to create the oil we burn. Yes, it's interesting that a gallon of gas required X tons of prehistoric plants, but we don't know how many tons of plants grew each year during the Jurassic, for example. The numbers are meaningless.
All the article (and the parent) seems to imply is that there's a prevalent belief that oil is a renewable resource. Huh? Is there anyone alive that believes we can cut down forests, let the wood rot, and make more oil? Besides the idiots in the White House? No. (And I seriously doubt that even the most conservative of energy policy analysts believes that to be true.)
So, if we all believe that oil is not a renewable resource, let's move on, shall we? We've become sidetracked.
People time to stop the ignorance. Everybody knows that the oil deposits laid formed from compressed plant and enimal material were laid down as a consequence of world-wide flooding at the time of Noah.
Since the flood only took 1 year (to subside enough to let the people off the ark), and it also reset the population to 8 people, all that is needed it to have another world-wide flood when we run out of oil, and everthing should be ok for another 4000 years or so.
Who cares how many plants it takes to make a gallon of gas? It's not like the process was decided in a board meeting.
What assumptions are we supposed to make here? Since the process is inefficient, we shouldnt use the oil? It's already there for chrissakes!
Why not instead examine the amount of gasoline we get from one barrel of crude oil? After all, humans actually instigate that process. The current yield of petrol from one drum of crude is slightly below 50%. That's pretty good I think. So, what happens to the other half? Is it wasted? burned up? Dumped in the ocean? No. Most of the rest of it paves your roads, waterproofs your roofs, bags your garbage, and is formed into uncountable different plastic products, lubricants, rubbers, esthers, ethers, etc. There is actually only a very tiny amount of waste from the refineries.
But what the hey, I'll jump on the bandwagon. The next time I pump 1.2 kilotons of dead plants into my Ford, I'll try to remember to curse planet earth for her crappy efficiency.
please.
Perhaps Im too much of an engineer, but the point to this whole thing has been obvious to me since I was a kid.
;) so regardless of point of view, we need an alternative to fossil fuels because they will inevitably run out.
When you use something faster than it can be made you have a problem. Sure, you may have heaps of stock, but eventually you have to learn how to make it faster or find something new.
AFAIK no-one has worked out how to plant and kill more trees 30 million years ago
I vote for building a chamber around my housemate's arse and collecting the gas he generates... Im sure it would power a small nation; course Im fairly sure what he produces contravenes WMD conventions
Of course, there something more complex that I am missing??
err!
jak
are absolutely lame. Let me explain:
Diatoms (no, that's not a new novel by L. Ron Hubbard) live in water, die in water, and sink to the bottom of the lake or ocean and mix in the mud. Over millions of years, they are compacted in the layers of sediments and decay to become oil--not some big pool of oil, but oil droplets mixed into a sedimentary rock such as sandstone. These droplets seep upward unless they are trapped by a more dense rock like a limestone -- particularly if it is domed up as in an anticline. Note that diatoms are not prehistoric fern forests or dinosaurs. They exist today and we will still have oil some day in the future.
Once upon a time we were taught that our petrolium was the excrement of dead dinosaurs, apparently in an attempt to evoke sympathy for such cuddly man-eating creatures and provoke guilt when driving pre-SUV gas guzzling Ford Explorer II and Cadillacs. But after the debut of the movie Jurassic Park, when little children learned that dinosaurs are NOT YOUR FRIEND, and over-playing of Barney convinced adults of the same, textbooks were re-written to claim massive hemp-like lod growth ferns were the originators of our gasoline, all the while, geologists, archaeologist and evil oil men alike shook their heads in disgust at the deliberately false and naive claims of the self-righteous, ignorant cultists because THE OIL THAT COMES OUT OF THE GROUND DOES NOT COME FROM PLANTS OR ANIMALS!!! It never did.
Advocating more deep fried foods is a humorous contrast to the parent post regarding obesity.
Kerosene cometh from ...?
I've gotten this most annoying allergy to soaps (I do not yet know wich components cause them) ...have any of you ever tried to read what's in your shampoo, soap etc? they all seem to contain Disodium Laureth Sulfosuccinate (seems to be the most dominating component, next to water),parabens (iso-,ethyl-,propyl-, etc) etc etc, all long latinish names that makes paranoid me scared.
Cynic me has gotten the crazy idea most of it is byproducts of fossile oil - stuff that they found out they could not sell -in fact had to PAY for having it stored/neutralized - until they though "doh! this stuff separates fat. Let's dump it cheap to the soap industry!"
Now, can someone please educate me on what the stuff in my soaps are?
"Even if these numbers are too large, this still makes you think about how inefficient our cars are."
No, Otto and Diesel cycle engines are very efficient at getting the stored energy out of those octane molecules. The inefficient part of the equation is the process that converts that vegitative matter into large hydrocarbons to begin with. And even then I'd say we're getting the better end of the bargain, getting hundreds of millions of years worth of energy storage as quickly as your cylinders (rotor, what have you) can fire.
You're also assuming all of that vegitative matter was turned into fossil fuels. It obviously wasn't (pesky first law of thermodynamics). Quite a lot of it went into being food for other creatures, breaking down into other, lighter compounds, etc. It takes a great deal of time for organic matter to to get low enough to be compressed into heavy hydrocarbons to begin with, so why are we assuming it remains undisturbed all that time?
The economical supply is the amount of oil (being sold/ready to sell) on the market (which is continuing to increase, and has actually grown by a factor of 6 in the last 50 years, despite a "diminishing supply").
In short, the world's supply of oil and the market's supply are NOT the same thing. The market's supply is measured in barrel's per year and the world's supply is measured in barrels.
The market's supply is actually based on the costs of production (and not on limits of raw materials). In the long term, the market's supply will increase if the market is favorable (selling products for a profit) and decrease if the market is unfavorable (making a loss) as competitors enter and exit the market or companies expand or contract production. Current market (and government-legislated) conditions for the oil market are favorable, so supply is increasing.
At some point, the limited raw materials for the oil market will raise costs such that supply will fall. For oil (as a raw material), when it occurs, this will progress rapidly (making oil unaffordable to most within a period of 2-3 years I speculate) due to the incredible inertia of everything that runs off of it (since oil is an inelastic good, no matter what the cost, in the short term demand will remain constant regardless of price). This rapidity means that there will not be time for alternatives to take its place without incredible economic consequences (unless everyone has spent time preparing for it.....it's probably like Y2K that way).
People may keep cars 2-3 years (unless you're like me=8-10yrs) but large industries are based off of oil, and would take decades for them to make a smooth transition.
Other, noneconomic factors also will keep the oil prices artificially low:
Political Pressure: Some governments (read US) are in the habit of pressuring other countries to keep prices low. This is remarkably akin to convincing someone to give you a dollar by pointing a gun to his head. He probably won't be worried about whether it's his last dollar at this point either.
In a span of two decades years, the US drilled between 1 and 2 million oil wells.
They didn't make sense other than the tax shelter aspect. And that is currently going on with reprocessing coal by spraying it with oil which results in a tax credit equal to the cost of the "product" (coal sprayed with oil).
But if the US could drill a million oil wells that produced no more than 10 barrels of oil a day, why can't a million wind mills be erected? (The average oil production from US oil wells is less than 10 barrels; the median oil production is 1 barrel of oil per day, and 75% of all the oil produced in the US comes from about 1000 wells. There are currently about 500,000 producing oil wells in the US today. In fact, more than 99% of all producing oil wells are in the US.
I'm sure that oil will be pumped for 10,000 years, but it won't be for fuel.
The amount of time that oil will be able to meet American transportation "needs" is MAYBE 20 years and more likely less than 10. $100 a barrel in 2010 is optimisticly low, but it would probably result in far less oil being used for US transportation than would be the case with oil at Bush's goal of $10 a barrel.
Civil war in Saudi Arabia could bring us $100 a barrel oil in a year or two....
The point of the article is that the oil we pump and burn was produced over millions of years and that the process is, at best, able to turn 1 million Joules of solar energy into 1 Joule of energy from oil.
On the other hand, a solar cell or passive solar can turn 100 Joules of solar energy into 15 Joules of electricity or heat.
So long ago, a lot of solar energy was stored in plants and then stored for millions of years and very little useful energy is available today.
400 years ago, some people bottled some grape juice, which can be drunk today.
The cost of the oil is set based on the cost of pumping it out of the ground.
In like manner, the cost of a glass of a 400 year old wine should be the cost to have a waiter open the bottle and pour it into a glass. Ie, a buck for the tip.
Economists go to great lengths to explain why a bottle of wine, not much different from any other bottle of wine is worth $10,000. But they can't seem to figure out that oil, something that was produced 100 million years ago, and thus far more rare than wine, is worth a whole lot more than the cost to pump it.
Photovoltaic solar panels are not now and never will be viable as a source of energy, but this doesn't rule out solar power entirely. A heliostat (an array of mirrors computer-aimed at a central target) is much more efficient in terms of the ROI energy produced, and usually in general as well. A well-tuned heliostat produces nice, clean energy all day long (not just when the sun is up... it melts sodium and uses this to fuel turbines even at night). The total cost per kilowatt-hour is much, much lower than any other solar method.
Hardware, software, and blinking lights!
Wow. You folks sure are good at making up stuff.
I never advocated more deep fried foods.
I never mentioned soybeans.
I never said we should convert farmland to vegoil production for the purpose of powering vehicles.
I only mentioned that there is a simple way to use an existing waste product as a transportation or heating fuel, with the side effect of less pollution than the fuel it displaces, and all you folk who are threatened by new ideas went postal on me!
I'm outta here. You guys are just too willing to put words in other people's mouths.
But the next time you stand on the street and hear a diesel vehicle approaching, and then get a whiff of french fries (or doughnuts, or elephant ears) instead of obnoxious diesel fumes, you can think of me and be greatful that some people are willing to do something now for the environment, instead of sitting at their computer, sniping from the sidelines. Veggie Van Gogh
: What Constitution?
How many tons of plant material is required to run slashdot for an hour?
This is only partially relevant to your comment, but:
Why does everyone assume all our hydrocarbons come from dead, compacted plants? There are hydrocarbons all over the solar system. Should we assume that all those hydrocarbons on Titan, the moon of Saturn, came from dead, compacted plants?
Certainly, methane can come from many astronomical processes. But I think life is pretty much the dominant player in making large, complex hydrocarbons. That doesn't mean they don't exist in space, just that life is particularly good at making them.
: What Constitution?
I miss my two stroke street bike... ...Now that was a plant burning, wheelie machine!
4 tons per gallon * the number of gallons used forever = more than the mass of the earth.
What's the deal?
Over and over again, I see people mention alternative energy sources (such as wind and solar power) as a replacement for fossile energy sources. However, nobody seems to understand that those energy sources are expensive because they need a lot of fossile energy to be constructed. Every taken the time to calculate the amouth of energy required to build a wind mill or a solar cell and compare that to the amouth of energy that they will produce, and it will become clear to you that the so called alternative energy sources will become even more expensive when oil prices go up.
It's actually quite impressive if you think about it, since plants don't move on their own.
And it's such a shining example of selfless team spirit, too - those hundreds of immobile plants working together to propel my car.
What is the most (in US $) that you would pay for 1 gallon (US) of gasoline?
$2
$3
$4
$5
$10
$20
$50
$100
Slashdot Eds Link Anonymous Posts With Logged Posts
They Are Vermin Feeding On Each Other's Feces.
I Hate \.
Well, perhaps no so silently..
A number of comments in one.
1). The headline figure of the amount of prehistoric matter required per gallon/whatever is probably correct; it is also very irrelevant.
2). Thomas Gold's stuff about abiogenic oil is extremely wrong, to put it mildly. I've gone through this exhaustively on /. before; the guy simply operates in complete ignorance of general, let along petroleum, geology. Oil is derived from a small number of source rocks which are in turn rich in a particular type of algae; the sources are routinely traced geochemically. Wells are typically drilled well below the expected limits of oil occurance in the search for natural gas, which in itself consititutes several hundred thousand failed tests of TG's theories. Oil as we know it is distinctly finite, we've used about half, and production will shortly (2-10 years depepding on poitics and investment) start to decline.
3). Oil from waste/turkey guts. It's not a bad idea; having looked at and analysed everything I can find on it, it looks like a great way of a) Producing biodeisel, b) Recycling plastic, and c) Disposing of lots of nasty organic waste. However, given that every feedstock for this process (Turkey food, plastic, grease, etc) is in itself directly or indirectly dependant on oil inputs, this process can only ever recover a fraction of the oil used in the first place. It's a good process, but not a solution.
4) Solutions. This is a two part problem; first, where does your primary energy come from, and second, how do you provide energy for transport. In today's world, primary energy comes from Coal, Natural gas, Nuclear, Hydropower and Oil, but transport energy comes almost entirely from oil.
For primary energy (read: Electricity), the only currently viable long term option is Nuclear, hopefully with renewable contributions. Renewables alone are simply too intermittant; coal is too harsh on the environment, and natural gas is running out.
For transport, options are varied. Essentially we have to switch from having the energy source come out of the ground in a convienient, easily used form into making an energy carrier. This imples that whatever the solution, at least twice (and probably more like three times) the current generating capacity of primary energy will be required.
Hydrogen has been heavily hyped but the practicalities of storing and transporting it are proving very, very difficult. Fuel cell cars are very, very expensive and have limited ranges (50-100 miles).
Electric cars have benefitted strongly from the laptop computer - with the latest batteries, ranges of up to 300 miles are mooted, and they are seriously cheap to run. For some reason, however, no car manifacturer seems willing to introduce one to the general market.
Other energy carriers - Methanol from air, Boron, direct hydrocarbon synthesis - could also be viable given sufficient primary energy.
Bottom line is - we do, currently, face both energy and envionmental crises. The solutions to both are the same, and viable, and quite possibly cheaper than business as usual. Getting people to acknowledge this is, however, the real problem.
Why travel to work when you can telework?
Stick Men
[QUOTE] by heironymouscoward (683461) on Monday October 27, @10:38AM (#7319008) (Last Journal: Tuesday September 23, @07: ...My theory (and it's probably not original) is that hydrocarbons are remains of annobacteria colonies that live off sulphur compounds deep in the earth's crust. Such bacteria are known to exist, observed around volcanic vents in the ocean floor, for instance.
Now imagine _really_ large colonies of such bacteria, living in hot porous sulphur-rich rocks, and dying to rot and produce oil and gas.
[END QUOTE]
====> well if our theory holds true and IF the earth is just one big super bean burrito, we will be enjoying oil and natural gas for a LONG TIME TO COME.
gentlemen, start your engines!
[:)]
www.defazio-rotary.com
comes to mind.
They didn't make sense other than the tax shelter aspect. And that is currently going on with reprocessing coal by spraying it with oil which results in a tax credit equal to the cost of the "product" (coal sprayed with oil).
These sorts of things are why I find the way taxes are implemented so frustrating. In effect, creating a tax shelter specific to oil wells creates a lie in the economy. The government is subsidizing oil production in a way that creates an artificial and politically-motivated advantage for oil production, when it otherwise possibly wouldn't have existed. The outcome is a short-sighted and selfish tax law from the past causes damage to the free market that lasts decades and probably centuries.
Healthcare article at Kuro5hin
All very interesting. For one thing, however, the vegetation-crude oil formation theory has still not been conclusively proven. Direct chemical formation deep in the earth is tantalizingly possible. Anyway, continuing developments should make all this moot. Solar electric generation from our roof surfaces may make electricity very cheap and pleniful; more efficient storage may finally make electrically powered transportation practical. When the nanotechs develop the Ufog, we will be able to effortlessly fly or slither wherever we want. That is, whenever we get bored with our oh so lovely infinienvironment.
But a kerosene (or similar) fueled rocket is smaller and cheaper to build for it's power. The DENSITY of hydrogen is poor for it's energy. It requires extra cooling (the boil-off for a shuttle launch is in the double digits for percentage of hydrogen that boils off before launch, wasted), incredably tight storage containters (myler vs. rubber balloons), and production is ineffecient (most is made from breaking down natural gas, electrolysis is only about 40% energy efficient).
I don't read AC A human right
is the nature, ineffectively transforming 4 veg tons into a single oil gallon,
I read the report. Bad Science. Bad sloppy calculations and clearly propaganda for the left that hates American Freedom and Prosperity.
It also belies the enormous quantities of this stuff out there. Not even their evolutionary time lines produce enough years and material to account for what has already been used at this guys calculation base rate.
Never Politically Correct ~ I prefer the facts If you don't like what I say, get a life, or comment yourself.
When it's cold, I wear fleece, and if I still feel cold, I pedal a bit harder.
When it's hot, I drink lots of water, and go just fast enough for the wind to cool me off through evaporation.
It's an amazing machine, the human body!
Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself. -- Mark Twain.
I have some venue in livestock. You are accurate on the feed-to-weight conversion for cows.
As to let people know about conversion efficiency for pigs, I have raised pigs that can convert 2.66 pounds of grain to 1 pound of body weight. The best pig I've seen had a 2.33:1 conversion ratio. Of that actual body weight which is meat, that depends upon the genetics of the animal. As for cows, there is a (new?) type of cow, of which I do not have the information to testify at this moment if it was geneticaly manipulated or natural, that is said to grow no matter how much it eats and retain less than 1% body fat. That's near equal to the body fat of turkey!
Verry interesting. Can anyone provide the species or common name of that cow with the verry-low body fat %%? The common name seems to have slipped my mind while I write this...
Secured Party, Without Prejudice, UCC 1-207: Creditor
but I'd have to call bullshit on that. If I was four miles off road across granite after the fall of man with nothing but my Hummer and 500 gallons of gas stashed in a cave near old route 49, as Hummer would be the best way to use energy. It could pull lumber back to my camp.
-pyrrho
Marge: Homer! That side of bacon was for my bridge game tonight!
Homer: Marge, if you don't mind, I'm a little busy right now achieving financial independence.
Marge: With cans of grease?
Homer: [sarcastically] No! Through savings and wise investment. Of course with grease.
From 5F20.
"Smoking helps you lose weight - one lung at a time" -- A. E. Neumann
No one is making bitumen based engines, unless you intend to make a steam engine whose furnace is fed with old egyptian mummies. The only relation between cars and bitumen is that it's often used in the production of asphalt.
Ford is not building an ion drive based dragster. At the current level of development ion drives are useless under any conditions involving significant amounts of gravity or friction. They're really only good for lightweight space probes. (I seriously doubt if they'll _ever_ be competitive in ground transportation, although i don't know enough about the technology to be absolutly sure)
I haven't bothered picking apart the rest of his statements, although I'm sure they're all equally as faulty.
This Space Intentionally Left Blank
I've finally updated my 'instant friends' guestbook.
oh yeah, and we're having a halloween dinner party tomorrow and then going to see the original (silent) phantom of the opera, so if you're in the midwest, drop on by....
foldplay your photos won't know what hit them.
Third option: I read the article but you did not understand my post.
The article is about 'biomass', and my post was about vegetable oil. Veg oil comes from the seeds of plants whereas biomass is the plants themselves (pretty low grade compost type stuff). Veg oil can also be treated to make something called biodiesel.
There is actually real potential in this stuff as fuel;
Taken from http://www.planetark.org/dailynewsstory.cfm/newsi
Furthermore, any old veg oil can be used to drive a diesel. For instance, the oil used for frying in restaurants will do just fine, once filtered. So in this case, you get to grow food and grow fuel both at the same time!
I don't actually think that veg oil is a panacea, but it can certainly help.
All things in moderation; including moderation
PHYSICSEXPERT IS A PHONY!