The public and, above all, scientists clearly emphasize that the cause of global climate change caused mainly by carbon dioxide emissions is, above all, human activity and its combined emission. It is associated with the processes of fuel combustion in the energy, industry and transport, as well as with poverty being the main cause of difficulties in meeting basic energy needs in households and the incorrect way of heating them. The public is often made aware that the climate should be protected and at the same time convinced that global warming has no impact on the everyday lives of Poles. Meanwhile, Poland, due to the high share of coal in the energy sector, is indicated as one of the main culprits of carbon dioxide emissions in the European Union and exposed as a significant shareholder of climate change causing global warming. The aim of the work is to show the opinions of young people aged 15–24, in terms of their awareness of the human impact on climate change and indication of desirable directions of the modern energy policy, defining the level of support for these directions, which will significantly contribute to the reduction of carbon dioxide emissions.

The research conducted among young people shows that it is aware of the consequences of climate change, especially on a global scale, and to a much lesser extent in Poland, and still less in the Podkarpackie province. The studied youth emphasizes that climate change is currently one of the greatest threats, but it is one of many threats.

The young people emphasize that the energy policy in Poland should aim at the better utilization and reduction of energy consumption as well as increasing the share of energy based on renewable energy sources, associated mainly with public health protection, reduction of air pollution, as well as the energy security of the country. Young people show a lack of determination regarding the use of nuclear power plants, where we see supporters and opponents of this source of electricity in a similar relationship.

A recent and vigorous debate on the volume of mineral resources remaining in Poland prompts analysis on legal aspects of their exploitation in the context of protection of the country’s natural heritage. Economic growth requires consumption offossil fuels. Short-term economic solutions however invoke difficulties ahead. The article examines whether Polish legal framework meets the challenge.

This paper presents the parameters of the reference oxy combustion block operating with supercritical steam parameters, equipped with an air separation unit and a carbon dioxide capture and compression installation. The possibility to recover the heat in the analyzed power plant is discussed. The decision variables and the thermodynamic functions for the optimization algorithm were identified. The principles of operation of genetic algorithm and methodology of conducted calculations are presented. The sensitivity analysis was performed for the best solutions to determine the effects of the selected variables on the power and efficiency of the unit. Optimization of the heat recovery from the air separation unit, flue gas condition and CO2 capture and compression installation using genetic algorithm was designed to replace the low-pressure section of the regenerative water heaters of steam cycle in analyzed unit. The result was to increase the power and efficiency of the entire power plant.

In this paper Peter Strawson’s idea of non-reductive analysis is illustrated with the example of an analysis of knowledge along the lines of my book on the ‘sandwich theory of knowledge’: Epistemologia. Sandwiczowa teoria wiedzy (Kraków 2019). On this theory, knowledge and justification are intertwined and relativized to the context that has been determined, on the one hand by pragmatic presuppositions, including idealizations and the ceteris paribus clause, and on the other by the intended scope of applications. Knowledge so conceived need not be true, which permits granting to the outdated knowledge an epistemic status different than that of mere superstition. Still, the mechanism of revision of presuppositions in the face of novel applications can be thought of as driven by the regulative idea of truth in Kant-Popper sense.

The aim of present paper is to analyse two different interpretations of Xenophanes’ scepticism sketched by Sextus Empiricus in his work Against Logicians. The very first attempt of a systematic grasping of the meaning of the poet’s epistemological concerns can be understood in the light of the so called hypatyphos problem ascribed to Xenophanes already by Timon of Phlius, namely the question of alleged tension between two sides of Colophonian’s thought: dogmatic and sceptical ones. As a result, shared vital points of these interpretations can be mentioned: an endeavour to understand the poet’s philosophical doubts through later concepts of the sceptical school and its distinctive technical terms on the basis of silent epistemological assumptions. Also some characteristic features are presented (different modes of grasping the idea of opinion – dokos). Some prospective analyses concerning traits of these exegetic approaches in contemporary interpretations of Xenophanes’ scepticism are needed.