> Also, I think it was a mistake switching street lamps over to cool color tones, something that happened amid the clean energy push.

I believe this was a combination of coincidence (newer lighting technologies just happening to be a cooler white) and other intent (cooler light being supposed to keep you awake). I'd say the connection to clean energy is strenuous at best.

Also there are AFAIK various initiatives to go to more yellow LED lighting.