Although each year there are more reports and scientific publications indicating the growing adverse effects of excessive and poorly directed light on various elements of the natural environment and society, this issue is still not fully regulated by law at the EU and national levels. The general aim of this study is to analyse EU legal provisions and compare the regulations of selected member states concerning the prevention of light pollution. The thesis presented in this paper is that the lack of common legal frameworks clearly regulating light pollution results in highly varied legal actions taken by member states, which complicates the effective reduction of this problem, especially in the context of its often cross-border nature.

The aim of the article is to show the links between technological development and innovation and climate protection law on the example of promoting energy from RES. Technological development and innovations influence on the need to look for new regulations of climate protection by the lawmaker which enable the evolution of the instruments of climate protection law and achievement of the goals of promoting energy from RES more effectively. On the other hand, legal regulations may at least indirectly affect the technological development and innovation. In view of the tightening of the EU climate policy in order to meet the requirements of achieving a certain share of energy from RES in the final energy consumption, the challenge for the Polish legislator will be to ensure the economic efficiency of investments in installations involving two or more plants generating energy from RES and the implementation of electric energy storage technologies.