I haven't been watching Greta much lately. But it seems like she doesn't actually want solutions because her whole identity is tied up in the problem. I read that she was a depressed mute before all this. Talking about the climate emergency brought her out of her shell, got her on TV, and now she has a book out. If we were to solve the climate problem tomorrow, she would have to go and do something else with her life, or go back to being a depressed mute.