Dynamic land use changes in metropolitan areas are global phenomena. The influence of urbanisation processes on farmland is twofold: urban encroachments predominantly take place at the expense of farmland, and also result in farmland abandonment processes, especially in Central Eastern and Southern Europe. This paper analyses determinants of farmland abandonment in 280 municipalities situated in six selected Polish metropolitan areas. The analysis, which covers secondary statistical data as well as primary data collected via a survey among experts, applies the regression tree method. Within the six selected metropolitan areas nearly 9% of the farmland is permanently excluded from agricultural production (actual abandonment), plus another 11.5% is currently not being used for production (semi-abandonment). For actual abandonment, physical and economic sizes of farms, part-time farming, and soil quality constitute the most relevant determinants. Socio-economic variables play a more important role in explaining semi-abandonment than actual abandonment. Temporary exclusion of farmland from agricultural production is connected with urbanisation processes. Higher shares of built-up and urbanised areas, higher population densities, and positive migration rates result in higher shares of semi-abandonment. Naturally, areas characterised by agrarian fragmentation, where due to low agricultural incomes farmers more often decided to abandon agricultural production, were, in particular, subject to this process.

Globalization and the related processes of land and capital concentration are also present in Polish agriculture. As a result of the occurring changes in agriculture itself and in its environment, the importance of small agricultural holdings is permanently declining. The gradual disappearance of small family farms not only disrupts the direct relationships between food producers and consumers, but also puts food security at risk, primarily on a local and regional scale. The purpose of the article is an attempt to present that the development of Community-Supported Agriculture (CSA) can offer an alternative to the occurring current distribution channels. The article is focused on the possibilities of CSA development in the Wrocław district resulting from the proximity of the largest market in the Lower Silesia region—Wrocław (the capital of Lower Silesia in Poland). The survey covered 400 agricultural holdings located in nine municipalities of the Wrocław district. The conducted research has shown that the CSA model opens opportunities for a long-lasting cooperation between farmers and consumers, but its implementation requires an increase in the prices of agricultural products offered by farmers by about 50%, as well as solutions to the cost-related problems of agricultural product transport.

The growing demand for cheap food is a key factor in maintaining long supply chains. Increasing the distance between the producer and the consumer results not only in certain problems in maintaining profitability by small, local producers, but also in a threat to food safety. One way to counteract these adverse effects is to sell food through short supply chains. They shape the market in the direction of maintaining care for the sustainable development of all food production, but above all, maintaining and strengthening the production capacity ensuring the transparency of the high-quality food production process from an identifiable source of origin. The purpose of this article is to indicate the conditions on the side of both carp producers and consumers, conducive to building short supply chains, and determine whether they can be an effective alternative sales model in Polish conditions. The article focuses on the possibilities of developing short supply chains on the carp market in the Barycz Valley, concentrating the largest area of carp ponds in Europe. The research (surveys) included the five largest fishing farms and, on the recipient side, individual consumers and restaurants located in the Barycz Valley and Wrocław, and agritourism facilities in the researched area. The obtained results confirmed that short supply chains in the area of Polish aquaculture are characterized by high implementation potential. However, it is necessary to modify the current sales model so that the producers' expectations regarding the sales volume and the obtained price are balanced with the expectations of consumers articulating the will to buy fish at a given time, place, and price. This, in turn, will ensure the high economic efficiency of fishing farms, and consumers will have access to a high-quality product.

One of the important areas of the energy transformation is the citizens involvement in the energy production process. This is a prerequisite for maintaining the security of supply and price stabilization. In order for all citizens to have equal opportunities to use green energy, regardless of financial and housing opportunities, energy cooperatives are established in many countries. In Poland, the first renewable energy cooperatives emerged in 2021 but, unfortunately, their role in the energy transformation process will be rather limited in the near future. This is mainly due to the numerous legal, economic and social barriers that hinder their creation. This article adopts the hypothesis that there are too many barriers in Poland that discourage the creation of energy cooperatives or other forms of collective prosumption. The main obstacle is the limitations of installed power, coerced by the poor condition of the network infrastructure. The aim of the article is to answer the question of whether, given the current legal and economic conditions, a large-scale development of energy cooperatives is possible in Poland, or will the existing barriers make this development limited and not contribute to the country’s energy transformation? To answer this question, primary and secondary sources were used. Primary research relied on interviews in all cooperatives operating in Poland. Based on the literature on the subject, reference was made to the experiences of other EU countries. The research shows that there are strong economic, legal and mental barriers to the development of cooperatives in Poland. Overcoming them requires changes in the law, in the energy policy including decentralization of the energy market and increased public confidence in collective forms of prosumption.