Oh shit, it's that 'eco-friendly' agriculture of the future, is it? I guess you are from NL? I remember, from when I was little, my dad cursing about 'holländische Gewächshaustomaten' just to buy equally horrible tomatoes from Spain ...

I've noticed the same trend in PT. From 2001 to 2012, lights being added to the surrounding hills. Then they started switching off every second lamp, during Covid possibly more. Let's hope for some dark, quiet times.

the connection between bright light and lack of crime has been pretty thoroughly debunked, criminals like to see what they’re doing just as much as anyone else – Paul Bogard, The End of Night (2013)

I live in one of the safest part of the planet and people lost their shit when my town turned off every other street light. Not even on the main street, just the side street. They always talk about how unsafe it is and their children will die on the streets with no light. I walk my dog a lot at night and i have yet to see someone out on the streets, especially children who apparently roam around in the middle of the night.

Wasted light in this context is light that is not serving a purpose. For instance in my neighborhood there is a house that has security lights that shine well beyond their property lines and are triggered on sensor from across the street movement. These lights also illuminate upwards which provides no benefit. Simply controlling where light shines if you must have it is a good step to being a good neighbor and is better for nature as well.

But it IS a finite resource. To produce light, you need energy. Even if you use renewables, you can only cover so much area of the planet with solar panels and wind generators. In a world run on electricity that is produced by limited means, we should consider where we want to use each kWh ('bag of electricity'). Do you really want to render that image? Have that status light on all day? It's small things, but they do add up.