this article reads like the "a world without zinc!" school documentary spoof subplot on the Simpson's https://www.youtube.com/watch?v=U1iCZpFMYd0 https://www.yo

this article reads like the "a world without zinc!" school documentary spoof subplot on the Simpson's https://www.youtube.com/watch?v=U1iCZpFMYd0 https://www.youtube.com/watch?v=U1iCZpFMYd0 and the spat He... no, that's helium... She has with helium and in favor of hydrogen overshadows the more interesting suggestion at the end, that airships might make a lot of sense for cargo transportation. I wish the article made that case better!