Great article! I agree that the left needs to better present its vision to the world, both as a concrete political proposal, as well as in general popular culture, things like art and stories that show the future.
I'm not sure if this is a thing already, but maybe monthly events could be organized here for reading and discussing specific solarpunk novels, competitions on creating solarpunk art etc? It would be one way to strenghten a specific image of the community that could be used to manifest ourselves to the world.