ABSTRACT
This section illustrates how debates are opened and how new facts are produced in the course of power struggles and conflicts. They also reveal the political dimension of light-related matters of concern by exploring how they are turned into new matters of fact in the form of dark sky places, new criteria for public lighting, light plans, legislation to limit light nuisance and new institutional arrangements. Martin Morgan-Taylor offers an overview of regulatory frameworks developed by national governments to limit light pollution. Light levels were standardised in line with scientific photometric findings and to meet the need of motor traffic. Today, public controversies over the cost and energy efficiency of lighting and over light pollution challenge common lighting practice. Contestation and negotiation are most prominent in Ute Hasenohrl's historic longitudinal study on light-related conflicts during the 20th century with a focus on Berlin. Finally, this section explores the conflicts regarding light are settled and in whose interest.
