Green washing, is one of my pet peeves, especially when it comes to hydrogen. It's just too insidious and easy for folks to get behind and too easy for fossil fuel companies to paint a green future as reliant on hydrogen (and thus on fossil fuels). "Oh yeah we're Definitely going to work on a way to create hydrogen fuel cells without fossil fuels. we'll get right on that!" It's effective considering getting posted on a solarpunk instance and gaining a fair amount of upvotes