Wildlife
Flora and fauna have thrived with distinct day and night time but in recent years poor lighting has led to the blurring or removal of this distinction and the consequences are already measurable,
Energy
In a World now accepting climate change as a pivotal problem, using electricity inefficiently is not only costly but risking our children's future.
Health
Good quality sleep is vital to our well-being and stray light or light with a significant blue component can upset this causing medical problems. Anxiety caused by nuisance lighting can exacerbate those problems.
Starlight
Light pollution above villages, towns and cities causes a glow which restricts the objects that can be seen; often just to the Moon and the Sun. A whole universe is excluded from inquisitive minds.