they're al lrequired though?
Let's take the light outside my house. In recent years, rather than being on all night, it now turns off in middle of the night. Furthermore, we've not had any 20 car pile ups for as long as I can remember, and no riots have occured either
ie: It's had no negative effects at all. Of course that doesn't mean this can be done to all street lights, but it shows the comment, "they're all required though" is not the case.
I suspect a double figure percentage of lights in many towns could be turned off over night with no negative effects at all.
How are more efficent bulbs going to reduce light pollution?
more efficient bulbs means same light for less energy, not less light for... well no... just less light is what your proposing.
Firstly what is bad about that? If we are trying to reduce energy wastage, and considering light pollution along side this, then it's all part of the same puzzle. Energy is getting expensive, you only have to look at the electricity bill for your own home. So why not use it more efficiently?
Furthermore, more efficient methods may even include reducing brightness in some area at some periods, rather than just running at full illuminate over the whole night.
Again, the intention is not to throw us into darkness, but to just consider making better and more logical use of lighting to reduce both energy usage and therefore light polution.