the presence of an undesirable sight that can ruin the aesthetic appeal of an area; the visually unattractive elements of a landscape.

Of an area, having too much artificial light including street lighting, which prevents stars etc. being seen in a clear night sky.

(historical, euphemistic) To masturbate.

(obsolete, euphemistic) Masturbation.

plural of nocturnal pollution

(obsolete) nocturnal emission

Organic compounds, predominantly synthetic, that are resistant to environmental degradation through chemical, biological, and photolytic processes, and that are often associated with health risks.

Is a principle referring to the idea that firms responsible for causing pollution should be charged the full external costs for the damage that it inflicts on society.

A system aimed at controlling pollution by allocating each firm a certain amount of pollution permits which allows them to pollute up to a certain limit. If firms pollute less, they are able to sell there permits to firms that pollute more hence creating a permits market.