Hydrogen is the most important element in the universe, but in earth it's not that abundant (less than 0,2%, mostly in water) so maybe you should give that detail before letting uninformed people think that hydrogen is abundant in its gaz form on eath

isn't there a few more colors? pink (nuclear)? yellow (grid powered electrolysis)? white (by-product hydrogen, eg. from naphtha cracking)? brown (coal gasification)? turquoise (methane pyrolysis)? shouldn't focus too closely on trying to produce all the hydrogen from renewables, there isn't enough space for all the solar panels and windmills that would require, and white hydrogen production is unavoidable, might as well use it, pink hydrogen is carbon free, takes more environmentally friendly than green hydrogen, and cheaper, and blue and turquoise hydrogen might be the best option for many fossil fuel rich countries the obsession with green hydrogen might end up being the undoing of the hydrogen economy, we should be hydrogen colorblind, only price and carbon footprint should matter, not the specific source