The main aim of the paper is a comparative analysis of the research results presented in four research projects on e-customer preferences in last-mile delivery conducted recently on the Polish e-commerce market as: Gemius Poland, PostNord and Łukasiewicz Research Network – Institute of Logistics and Warehousing Network, and own research financed by Polish National Science Center under the title "Sustainable last-mile logistics and e-commerce returns. Perspective of various stakeholder groups". E-customers in Poland are mainly guided by price, safety and delivery service standards; trust in the supplier is also important. Interestingly, in the context of the development of pro-ecological trends, it is still of minor importance for Polish e-customers whether the delivery is environmentally-friendly, including whether it is possible to return the goods in an "environment-friendly" manner. A comparative analysis of research projects regarding e-customer preferences allows to identify similarities and differences in the scope of research results, identify a cognitive gap, and define directions and recommendations for further e-customer market research. The results obtained may also contribute to the formulation of recommendations for e-commerce and logistics companies regarding e-customer preferences for last-mile delivery to increase customer satisfaction, improve efficiency, and create competitiveness.

The intensification of space exploration is associated with the use of the Earth's natural resources, which in the context of the depletion of their resources and the climate crisis may meet with social opposition. The solution for balancing the social, economic and environmental goals of space missions is to configure interplanetary supply chains that allow, inter alia, on the use of natural resources from space objects (Moon, Mars, asteroids). The aim of this article is to present the theoretical achievements to date in the field of configuring interplanetary supply chains and to indicate the importance of the development of these chains for achieving sustainable space exploration. The author claims that the development of interplanetary supply chains can contribute to the sustainable exploration of space, and thus increase the level of social acceptance for space projects.

Management concepts that postulate reducing the negative impact of the economy on the natural environment, such as corporate social responsibility or sustainable development, are no longer just ideas that create the image of an organization, as they increasingly affect the level of its competitiveness, attractiveness for the recipient and value for stakeholders. Business entities that notice this trend are looking for new management solutions that will help to effectively implement the principles of green order and at the same time build the value of the organization. One of such solutions is ecologistics, discussed in this article. The aim of the article is to present the results of pilot studies on the advancement level of ecologistics in the companies of the Euroregion Nysa, in which the original model of ecologistics maturity in an enterprise was used. The pilot study was aimed at preparing research hypotheses for further research, as well as verifying the correctness of the theoretical model and the research tool in terms of content and form.

The author points to the essence and importance of ecologistics in enterprises and supply chains in the context of the growing environmental crisis. Based on the assumption that bottom-up initiatives of individual enterprises, which have their source in the implementation of corporate social responsibility, as well as in striving to improve competitiveness are able to realistically and faster than system projects affect the elimination of the greatest threats to the natural environment, the author presents solutions in the field of ecologistics, which can be applied in any enterprise regardless of its status. The purpose of the discussion undertaken in the paper is to present the author's model of the level of development of ecologistics and the system of evaluation of activities in this field in the enterprise and the supply chain.