It is desired that the impact of resource use on the environment be kept to a minimum. Thus, resource efficiency enables sustainable economic growth. This can reduce greenhouse gas emissions as well as the amount of waste generated. Given that climate change is contributing to environmental degradation, the interest in efficient waste management is high. Environmental protection measures can reduce the effects of global warming. Many of the technologies have negative influences on the environment. Thus, the application of new technologies can lead to a reduction in the amount of waste resulting from the production process. The article presents a comparative analysis of the distribution of waste generation in the member countries of the European Union. One measure that can lead to the efficient use of resources is the prevention of waste generation. In this way, the impact of waste on the environment decreases. From the analysis presented, it is observed that certain sectors of activity generate a higher amount of waste. At the same time, compared to 2010, in 2018, in most member countries of the European Union, the quantities of waste generated per capita increased. This can be an alarm signal for the call to action. Extending the life of a product and reusing it, through repair, can influence the change of production models. Measures to recycle and reuse materials are considered to be of greater importance.

In the current context of the transition from a classical society to a society based on a smart and sustainable economy, the integration of the needs of communities at economic, social and environmental level into complex projects is a constant concern. The implementation of complex projects in terms of volume and structure can no longer be covered at the individual level only by the institutions that require public-private partnerships, so it is practically necessary to achieve combinations between the different alternatives available.The objective of this research is to evaluate the opportunity of financing through public-private partnership of public investment projects, highlighting the advantages and disadvantages associated.In this paper we used the qualitative research method based on the analysis of articles in the literature and we highlighted the context of developing this source of funding and the relationships and responsibilities that can ensure good management between different categories of partners.The results obtained from the study of the specialized literature proved that the investments made in PPP can be extremely useful and efficient tools for the sustainable development of communities, but in Romania they are insufficiently exploited compared to the classic investments financed from local and central budgets.This topic has a high degree of novelty for Romania, where the institutions are still reluctant to identify and select a private partner, which indicates a lack of involvement.