  We recall that hydrogen combustion does resolve the environmental problems of
fossil fuels due to excessive emission of carcinogenic substances and carbon
dioxide. However, hydrogen combustion implies the permanent removal from our
atmosphere of directly usable oxygen, a serious environmental problem called
oxygen depletion, since the combustion turns oxygen into water whose separation
to restore the original oxygen is prohibitive due to cost. We then show that a
conceivable global use of hydrogen in complete replacement of fossil fuels
would imply the permanent removal from our atmosphere of 2.8875x10^7 metric
tons O_2/day. Fuel cells are briefly discussed to point out similarly serious
environmental problems, again, for large uses. We propose the possibility of
resolving these problems by upgrading hydrogen to the new combustible fuel
called magnegas^TM, whose chemical structure is composed by the new chemical
species of magnecules, whose energy content and other features are beyond the
descriptive capacities of quantum chemistry. In fact, magnegas contains up to
50% hydrogen, while having combustion exhaust with: 1) a positive oxygen
balance (releasing more oxygen in the exhaust than that used in the
combustion); 2) no appreciable carcinogenic or toxic substances; 3)
considerably reduced carbon dioxide as compared to fossil fuels; 4)
considerably reduced nitrogen oxides; and 5) general reduction of pollutants in
the exhaust up to 96% of current EPA standards.
