#LightPollution is constantly expanding, cities are consistently adding 5-10% more light a year. This is a waste of energy, harms people's sleep, stops plants from breeding, and disturbs animal and insect life. On top of that, the night is also beautiful.
https://www.theguardian.com/world/2021/mar/17/lights-off-france-parkour-collectives-fight-pollution-one-store-sign-at-a-time