Effects of converting U.S. vehicles to hydrogen fuel cell or
hybrid vehicles, Science, 2005. (pdf)
P. 1904, paragraph 4, units of water vapor and carbon dioxide emission should
all be in megatonnes (four times) rather than "metric tons" or "tons"
Supporting online material published
online with the Science article (pdf)
Companion article, Colella, W.G., M.Z.
Jacobson, D.M. Golden (2005) Journal of Power Sources, 150, 150-181. (pdf)