Blockchain technology is currently one of the trends considered to have a tremendous future ahead. It ensures data security, data sharing protection and automation development—elements that are of colossal importance in the era of cloud solutions, big data and Internet of Things (IoT) reality. Additionally, blockchain technology allows one to create new programmable ecosystems on an unprecedented scale. The implementation of blockchain technology leads not only to improving the flow of documents and data storage, as is the case with the creation of shared service centers (SSCs), but—as this paper shows—allows one to reduce the carbon footprint when servicing SSCs at a considerably higher organizational level at the same time. The example of an SSC in Elbląg, Poland, proves that cloud solutions enabling electronic documents flow and data storage combined with blockchain technology are tools essential for further SSCs development. Furthermore, such tools allow us not only to obtain economic effects (i.e., cost reduction), but also to achieve positive ecological effects (i.e., carbon footprint reduction).

Environmental protection is currently one of the key priority areas of the European Union (EU). The search for precise tools to assess the impact of the economy, industry, or the production of individual products or services is crucial for an effective and efficient policy in environmental protection. Blockchain technology, originally related to the financial sector and cryptocurrencies, is an innovative solution that is increasingly being implemented by other areas of the economy and industry sectors. The authors reviewed the literature and based on it presented the possibilities and effects of using blockchain technology in Life Cycle Assessment (LCA), which is in line with the current development trends of this method. The analysis of the research conducted in this area also allowed to present not only the advantages of blockchain in LCA, but also the limitations of this technology and the potential directions of further research.

The use of recycled materials and industrial by-products in pavement construction and rehabilitation can achieve substantial benefits in saving nature resources and reducing energy consumption as well as greenhouse gas (GHG) emissions. Alternative geological origin rock dust for the partial replacement of fine aggregate and/or cement in Portland cement concrete (PCC) pavements may provide positive environmental and economic benefits. The objective of this study was to quantitatively assess the life-cycle economic and environmental impacts when rock dust is used in PCC pavement roadway construction. Previous studies have primarily focused on the economics and/or environmental impacts during the material production process. Thus, a methodological framework considering all stages (such as material production, transportation, construction, maintenance, rehabilitation and end of life), involved in the life-cycle assessment of concrete pavements is proposed when using recycled materials/by-products. The life-cycle assessment (LCA) was conducted on a pavement project representative of typical construction practices in Poland to quantify such benefits. The alternative sustainable construction strategies considered partially replacing fine aggregate and/or cement with rock dust of basalt origin in PCC pavements. The LCA results indicate that using rock dust to replace 20% FA and 10% cement provided a reduction of 6.5% in cost, 10% in CO₂ emissions and 11% in energy consumption. This study also provides significant insights on the specific contribution of material production, construction processes and the transportation of materials to the overall environmental benefits and cost savings. The suggested approach for LCA analysis in pavement construction can be adopted elsewhere for quantifying the sustainability benefits of using alternative recycled materials in roadways.

This research project is the first and only comprehensive regional study in Poland including all teachers and headteachers of primary and secondary schools. The aim of the study was to determine the factors influencing the learning process carried out remotely and to examine the potential of this form of education for primary and secondary school students and its future use to improve the quality and accessibility of education. An important aspect of this research was also the assessment of the respondents’ capabilities and competences in the area of operating and using digital tools in the educational process. During the COVID-19 pandemic, a total of 9070 teachers took part in this study. The method of data collection was an online survey. The research instrument consisted of a survey questionnaire. The survey was conducted electronically using tools provided by Google. The following methods were used to evaluate the data: count tables, which allowed for data exploration; a graphical method—cross-sectional analysis; and individual correlation analysis, which allowed for preliminary data evaluation. The results obtained within the research process conducted allowed us to achieve our goals. According to 42.4% of the teachers surveyed, remote learning is a good alternative to traditional teaching. The study also confirmed, inter alia, the presence of a correlation between technical conditions of classes and specific forms and levels of education, with 49.7% of respondents indicating that remote learning depends mainly on the quality of technical parameters, including a good or very good Internet connection. The biggest advantages of e-learning, as indicated by the respondents, were the possibility of working from home, conveniently sharing educational materials, and utilising additional teaching aids. Health issues and long times spent in front of the computer were highlighted as the greatest drawbacks of this teaching method. The results also showed that, as the age of the teachers increases, the acceptance and trust in distance learning activities increases while the fear of using this form of student learning decreases. This study lays the foundation for designing systemic, nationwide solutions, and thus, the authors are planning to continue their research in the context of comparative analysis of different regions and to analyse this process in the context of the entire country. The analyses performed form a part of a global line of research in the field of education and in the implementation of innovative tools and forms of education provision.

Environmental protection is currently one of the key priority areas of the European Union (EU). The search for effective solutions for the supply and use of energy in cities is currently a key topic. The reduction in gas emissions and the use of renewable energy sources are goals that result from environmental aspects. The purpose of this publication is to conduct a literature review in the area of municipal energy management. Municipal energy management systems integrate many areas, from energy supply systems and the modernization of public transport to the energy demand reduction of residential and commercial facilities. The results of the literature review research have allowed for the classification of articles based on the following criteria: research methodology, research purpose, research data collection method, use of research results article type, and research subject area.

International cooperation of cities is a crucial part of multi-level governance, yet, nowadays, it is facing new challenges, such as the pandemic or the growing role of populist movements, not to mention the war in Ukraine. The research goal of the paper is to determine what drives cities to participate in the Pact of Free Cities and what the perspectives of such an enterprise are. To reach this goal, the authors attempt to answer questions regarding the Pact’s intentions, methods of achieving its objectives and chances to do so, possible EU interest in this kind of initiative, and chances that other cities will be inspired to follow. Do cities want to bypass governments, or are there other reasons for establishing such cooperation? This exploratory case study aims to show a new form of city cooperation introduced by the Pact of Free Cities initiative.