Earlier quoted context omitted.
Light pollution is relatively easily solved, there's just not much will to do so. Noise pollution is best solved by reducing car-dependency which is a non-starter in most North American cities; I can't speak for Europe but I understand Paris to have undertaken a serious revolution in purging cars within the past decade.
Hear hear! Anytime someone argues something like "I could never give up my car and live in a city! They're so noisy!" I feel like a version of that Goose meme. "NOISY FROM WHAT?"
Sirens, people yelling, loud music, construction, etc.