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January 10, 2004

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Wilhelm

probably the study is not completely wright...

Werner Zittel concludes:
However, keeping in mind that automotive exhaust emissions have increased their share of hydrogen emissions during the last two decades due to the introduction of catalysts, and that atmospheric hydrogen concentrations are increasing since at least 15 years (between 1985 and 1989 with an average increase of 0.6 percent per year [see Khalil M.A., Rasmussen R.A. "Global increase of atmospheric molecular hydrogen", Nature 347 (1990), 743-745] it is very likely, that in a global hydrogen economy anthropogenic hydrogen emissions are rather reduced compared with today's values.

the whole article:
http://www.wasserstoff.de/Neuigkeiten/archv203.html#LBST-Analyse_2003-06

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