This is the first of these articles that I've seen where the reporter actually bothered to interview an industry expert who pointed out an obvious issue -- ther

This is the first of these articles that I've seen where the reporter actually bothered to interview an industry expert who pointed out an obvious issue -- there's probably not that much hydrogen in the air. The explanation for this from statistical mechanics is that at the temperatures commonly observed in the atmosphere molecular hydrogen has a speed distribution that encompasses the escape velocity of the Earth.