Should we use hydrogen for energy given that it burns clean. It depends on the color!
Green Hydrogen: Yes, it is produced by using energy from renewable sources.
Brown Hydrogen: Hell no! It’s made by gasifcation from coal releasing carbon dioxide along with the hydrogen, and there is pollution from the mining of coal.
Gray Hydrogen: No! It’s made by reforming methane in natural gas with high carbon dioxide emissions, and of course, natural gas is a fossil fuel whose extraction risks polluting the atmosphere
Blue Hydrogen: Still no! it’s made like gray hydrogen with carbon capture but doesn’t prevent unburned fugitive methane from escaping.
The latter three sources seem convoluted to me. What’s the point of turning fossil fuel energy into a different kind of energy? Granted the burning of hydrogen in our cars means less carbon down our canyons of freeways, but creates new low income areas with undesirable air quality where the hydrogen is produced.
The reason this is of interest is that the sorely needed pending one trillion dollar infrastructure bill includes several billion for hydrogen research. I’m campaigning that in the implementation, the research is for green hydrogen. The best way for that to happen is for the word green be inserted as an amendment.