Two different environmental / tech items I kind of like.
Aptera is a company working on make an super, super efficient car. It sort of boarders between glorified motorcycle and tiny coupe, but interesting as a thought experiment if nothing else, though I think they have a few working prototypes floating around.
FloDesign Wind has a very different take on wind turbines as well. The video is particularly interesting, though it’s a bit of a commercial for them as well. Interesting for thinking about the different pros and cons of traditional wind power, and making a little more sense of how they’re set up when you see a field of them. Personally, I still think solar concentrators with steam engines are the way to go.