Well, I think there's a basic principle at stake, which is that we shouldn't be able to use our shared atmosphere as a free garbage dump and that pollution should be paid for. I think it does send a signal, both at the household level and at the industry level, about how people might want to shift, and, importantly, I think it's a source of revenue for what we actually need to do.
However, I don't put as much stock in it as some people do, because I am trying to approach this crisis with a new framework pulled from that wartime story. Imagine if we had mobilized in the face of fascism by trying to encourage, by sending price signals, by offering people rebates. It would have been a different outcome, and people looking back at it would shake their heads. It's not how you prosecute a fight like this.