New Light Pollution Edict

 Light pollution is one of the most serious seemingly-meaningless issues.

 For four billion years, every inhabitant of the entire planet had a gorgeous night sky to appreciate.
 Now, all of a sudden, this inheritance is vandalized. Utterly erased. 

 Here's my new rule: no lights in rooms with windows. Maybe having such deep shades that windows don't show the sky would be enough, but it's generally only one bounce, off the ground, to get to the sky. Might still be too bright. If so, then rooms and buildings intended for use at night should be windowless. Either underground or deep in apartment blocks.

 Also ban cars outside at night. Encourage underground roads, which, as a bonus, don't have to worry about weather. Especially snow or ice. Bikes don't need all sorts of fancy lights if there's no cars to get run over by - use one of those if you want surface transport at night. 

  Most of the time you can see just fine at night. As long as there aren't all these windows, streetlights, and cars. Use a hand light on overcast new moons.