Re: Great Article -- High Speed Rail
by
hapibeli
06/05/2009, 1:16 AM #
The following is from <link>
If we believe that we have high tech solutions just over our horizon, we may be in for a severe bought of depression. Local economies will likely rise as global economies slip into decline, creating no small measure of hardship for many. Wake up folks. The end is not coming, but big changes are.
"Electricity isn’t an energy source; it has to be generated, using some other energy source to do so. The electricity that powers the European and Japanese rail systems is mostly generated by plants that burn coal, with significant help from nuclear reactors and a rather smaller assist from hydroelectric plants. Of these, only the hydroelectric plants are a renewable energy source; the others are poised just as firmly on the downslope of depletion as the diesel oil that runs American locomotives.
Coal is turning out to be much less abundant than the cozy estimates of a few decades ago made it sound, and of course there’s the far from minor impact of coal burning on an already unstable global climate. Fissionable uranium is well down its own depletion curve, and it’s worth noting that the enthusiastic claims sometimes made for breeder reactors, the use of thorium as a nuclear fuel, and other alternatives to conventional fission plants are very rarely to be heard from people who have professional training in the fields concerned. Thus my reader was quite simply wrong; the European and Japanese rail systems that so excited his admiration are just as dependent on nonrenewable fuels as the American system, and are also just as vulnerable to the economic implications of supply and demand as energy supplies dwindle.
Now of course there are other reasons why railroads may be kept in service, at least for certain uses, long after they become economic liabilities. Many of the world’s larger nations – the United States and Russia among them – grew to their present size only after rail transport made it possible to exert political and economic power on a continental scale, and future governments may well keep long-distance rail links going as a matter of national survival. That likelihood, though, does nothing to counter the point central to last week’s post: that in a world with much less energy, older and more energy-efficient transport methods such as canal boats may turn out to be much more economically viable than their more recent and more extravagant replacements, and those cities and regions well positioned to take advantage of waterborne transport may therefore thrive in the 21st century as they did in the 19th."