On first glance, hydrogen seems to be the ideal fuel for automobiles and other vehicles. It doesn’t seem like one could get any cleaner burning, since hydrogen burns (oxidizes) to form simply water vapor. Nothing else! No pollution! What a seeming advancement over our current internal combustion engines that put thousands of tons of pollutants into the Earth’s atmosphere, as well as giving off massive amounts of heat that contribute to global warming, and many other environmental problems.Hydrogen (H2) plus Oxygen (O) makes H2O, water, or actually, water vapor, at higher temperatures. And Hydrogen is actually capable of nearly meeting those high expectations.And there is even a concept, and somewhat of a device, called a Fuel Cell (originally conceptualized in the 1830s), which can use this reaction to generate electricity. During the 1960s, NASA developed Fuel Cells which produced electricity for spacecraft. They worked reliably and fine, but they were horrendously expensive. There have been people trying to make inexpensive versions ever since! In the early 1990s, some breakthroughs were found. The concept of a Fuel Cell is actually pretty simple. You provide a supply of hydrogen gas and oxygen gas (which is usually from the air) which are separate, with a unique barrier between them. The simplest version of a Fuel Cell is to allow the NUCLEUS of the hydrogen atom to pass through the barrier while not allowing the electron to also pass through. The electron is then caused to follow some DIFFERENT path to eventually get to where the nucleus had gone to, where the end result will be water molecules. The electrons are negatively charged, and when they are forced to follow that alternate path, they are MOVING CHARGE which is the same as an electric current. In words, it therefore seems quite simple to have a Fuel Cell produce electricity. However, in practical terms, there are lots of complications! It may still be ten or twenty years before any reliable technology will exist which has tolerable cost.But Hydrogen itself has an ENORMOUS disadvantage, as well as many smaller ones. It cannot really be considered a “fuel” at all! Yes, it IS, but it isn’t! It IS because of the exothermic chemical reaction described here. It ISN’T because it does not occur naturally. We have such an attachment to petroleum and natural gas and coal and uranium BECAUSE they exist naturally. We actually have the technology to manufacture petroleum, but it would be so involved and expensive to do that it would never be worth it. Hydrogen is very different. It is so chemically reactive that it IMMEDIATELY combines with nearly any other atom (ion, actually) that happens to be near it. So there is NO natural supply of Hydrogen, anywhere on Earth.Read on at the link this is one of the most informative sites on hydrogenCrew Chief News source: MB-Soft