Bill McKibben, the prophet of global climates dark truths, has published a new book with a positive story that is not yet being fully told and appreciated. “There is one good big thing happening among all the big bad things happening on our planet” he says, and “it is going so far largely unnoticed.” The speed with which the world is transitioning to new technologies for solar power is unprecedented. Solar power is now the biggest source of energy in the world, and yet, we still don’t seem to take it seriously. That is about to change.