Comment by tqi
Agree, but it's more expensive and less energy efficient[1]. Personally, that seems worth it to me [EDIT: "it" being using slightly less efficient lights that are more comfortable for people], but thats a difference in values not in how much I "care" about the problem...
[1] https://www.scientificamerican.com/article/streetlights-are-....
> that seems worth it to me
How much more energy efficient is it? If it's a tiny efficiency gain vs the negative effects of blue heavy white light then I would suggest it's a bad tradeoff. Some studies have suggested that blue light doesn't affect sleep [1] but the psychological effects of cold vs warm light has been used by lighting designers for decades. Cold light is less comfortable and discourages hanging around, the positive spin is "energizing", it's often used in supermarkets and budget stores that value faster browsing, and impulsive decisions under a greater feeling of urgency. Warm light has a relaxing effect and is used, for example, in luxury stores and restaurants where people are intended to take their time. [2] For outdoor areas where people are intended to enjoy relaxing after dark activities warmer light would be far superior an experience than colder light.
1. https://www.medicalnewstoday.com/articles/blue-light-may-not... 2. https://www.tcpi.com/how-lights-impacts-psychology-mood-in-r...