Green certificates as an instrument to support renewable energy in Poland-strengths and weaknesses.

The problem of air pollution not only in Poland but also around the world has become an important topic of political, economic, scientific, and legal discourse. Its position is the result of international obligations and Poland's membership in the structures of the European Union. In Poland, air quality is very bad, which makes it one of the countries with the worst air quality indicators in the European Union.

Air protection programmes in Poland in the context of the low emission.

The protection of the air against pollutants from individual boiler plants is a big challenge in Poland. It results mainly from the preference for coal, the national energy carrier, the use of old low-efficiency boilers and the location of Poland in a temperate climate where the heating period lasts at least 5 months. This article presents a wide range of activities aimed at the reduction of the environmental impact of the emissions of pollutants from individual heat sources-the so-called low emission.