The moon is white. White is the most natural color of light at night. White street lights are probably the most natural approximation.
The article doesn't say anything about white light, but does say "Normal street lighting can affect a bat’s flight" but doesn't go into detail. I would love more detail.
The intensity of a street light is vastly higher. They typically produce 10x-100x more foot-candles versus a full moon on a clear night at a bright latitude.
Even under ideal conditions, the earth receives ≤1 lumen per square meter of light from the moon. A single streetlight can project tens of thousands of lumens (or more) over a relatively small area.
Presumably having white light would also not be harmful assuming it's as dim as the moon. Which, don't get me wrong, can get surprisingly luminous, but not when compared to street lighting.
> The moon is white. White is the most natural color of light at night. White street lights are probably the most natural approximation.
You say "white" as if there's only one color white, which isn't the case when you're talking about a range of lighting temperatures. The moon also has a unique light profile that it reflects. It's not the definition of white. Either way, if you're advocating for something resembling 6500k daylight white lighting at night, there is nothing at all natural about that. The moon casts a very dim light, even at its brightest.
4000K is too high imo. In France the maximum is 3000K for example. For some cases (natural parks, building illumination etc) the limit can be lower 2700K or 2400K.
Sounds like a marketing ‘puff piece’ to me. Here, accept this ‘fact’ about red lights, unsubstantiated by any details or references as truth. And you’re going to like it because it supposedly is environmentally friendly. And because it ‘feels good’ you won’t ask any questions and repeat it to friends and family as if it were truth.
What are you talking about? People exploring nature at night have been using red lights for decades. It's standard equipment.
There's no mystery around the reason to use red light either. Nocturnal animals, especially mammals, have far more rods than cones in their eyes. This means they are much more sensitive to brightness than they are to color.
Red light in practice is far less bright than white light for the same input energy (a bit more complicated than this) and for quite a few animals they may not see it at all or very poorly.
None of this is theorizing, the effect can be readily seen in practice.
The article doesn't say anything about white light, but does say "Normal street lighting can affect a bat’s flight" but doesn't go into detail. I would love more detail.