There is a simple fact about energy that most people who are uneducated in science simply don’t grasp: fuel is just a way of getting energy from the point where it is collected to the place where it’s going to be used. That is just as true of the liquid hydrogen and oxygen of the space shuttle as it is of a Kalahari Bushman gathering firewood, or of uranium being mined, refined, and trucked to a nuclear reactor.
The !Kung system, however, is many times more efficient than the others. It required no energy apart from sunlight to grow the wood, a little water, some minerals, and the muscle power needed to carry the wood to the communal fire pit, the fuel for which was also gathered on the spot in the form of meat and veggies.
When we begin to speak of turning sunlight into other forms of energy, such as alcohol, things get much less efficient and require a lot more energy — which must also be subtracted from the overall efficiency of the fuel.
Gasoline is the current way that we carry energy around to power most of our cars. It is more efficient for that purpose than running a hose to underground deposits of decayed prehistoric vegetables and dragging it behind the Ferrari wherever we go. We also use it because our cars are heavy and we insist on driving them at high speeds. These both take a great deal more energy, and thus require large amounts in concentrated form.
In the case of ethanol (ethyl alcohol, the drinkin’ stuff), we have — for the purposes of further fattening a bunch of rich folks’ wallets — been duped into accepting, by lack of education and right of approval, a “solution” that is horrendously wasteful of a number of absolutely critical resources, prohibitively expensive economically, and not even as efficient as gasoline for transporting energy. It is the worst possible choice we could have made, in terms of simple science and common sense.
The principles above, by the way, also apply to the production of hydrogen as fuel. Think about it. Trace all the forms of energy back to their source. If you go far enough, you always get back to solar — even with nuclear, which simply uses fuel from a different star, long gone.
Why did the powers that be choose ethanol? You can’t control and profit from the collection of sunlight, the rich folks and friends already owned a lot of land that could be easily converted to production, and they figure the environmental cost will come due in the future, and that they’ll be able to buy their way out of the disasters down the line.
The Bush family, for example, recently bought 70,000 hectares in Uruguay, right on top of South America’s largest aquifer and next door to the only air base outside of Montevideo that’s capable of handling big jets — improved by the US and protected by US Marines. (Oh…you didn’t hear about that? Must have been the Liberal Media’s fault.)
Is it any wonder that our students have been systematically dumbed down in science over the past few decades? Is it any wonder that evolution and cosmology scare the oligarchs to death? We can’t have the common folks knowing too much about the way things work, can we? Made that mistake in the mid-20th Century. Led to all sorts of problems.
Think I’m wrong? Read some basic science while you’re waiting for your next serving of Kool-Aid — or ethanol.
*Oh. You’re not “scientifically disadvantaged?” Explain, in plain language, the three Laws of Thermodynamics. You don’t have to get technical…just the high points will do.
If you can’t do that, you don’t understand one of the very basic facts of science, needed — among other things — to understand this article. Bet you don’t know what a scientific theory is, either.
Look it up.