Because of the volatile nature of hydrogen in a singular form, it would be extremely difficult to maintain it and use it in a safe manner. Cold fusion, on the other hand, may well be a good choice in which to pursue by world researchers in providing a cheap energy source, and one in which all properties are burned up with no residue or polluting effects. It is created in reactors and the use of nickel and hydrogen, yields copper and a powerful energy source. One or more factories are already using cold fusion to heat the massive building in Italy, where the process was developed and patented. Some have tried to play down the positive facets of this wonderful new energy source.Combining hydrogen and nickel in a reactor is much safer than one would think and well worth the effort.I wrote a hub on "Cold Fusion, Energy of the Future."