Marin County CA has banned outdoor advertising billboards since the 1930s[1]. This results in a noticeable reduction in night time light pollution compared to

Marin County CA has banned outdoor advertising billboards since the 1930s[1]. This results in a noticeable reduction in night time light pollution compared to surrounding areas, and -- of course-- a lack of obnoxious outdoor adds. [1] https://cdnc.ucr.edu/?a=d&d=HTES19380414.2.41&e=-------en--20--1--txt-txIN--------1 https://cdnc.ucr.edu/?a=d&d=HTES19380414.2.41&e=-------en--2...