## 11 Discussion  
The United Nations 2030 Agenda for Sustainable Development includes as an important goal the sustainable acquisitions, based on specific programs able to measure the price-performance-impact on the environment balance regarding raw materials, services, products, technologies, etc. GPP and IPP have an important impact on sustainability, reducing the environmental footprint. GPP itself is also based on innovative policies, strategies, and acquisition model, following the type of product or service. Furthermore, eco-labels were designed to sustain the GPP process to gain social, health, environmental, and ethical sustainability. For a clear understanding and a good implementation of GPP international standards like GECA were set. These types of standards represent guidelines and restrictions regarding pollution management in different fields such as construction, transportation, services, tourism, health, education having a positive impact on the eco-environment (Figure 6). We chose organic farming in Romania as a case study because the EU Action Plan for organic farming comes with new regulations in the future which recommends initiatives to support consumer confidence, support for increased export opportunities for organic food, development of electronic import certification systems, encouraging the use of organic food in schools through GPP. Currently, over 40% of the land in Romania is worked by 0.56% of farmers, in farms larger than 300 hectares. Approximately the same area is worked by 97% of farmers (about 795,000 farmers), in small farms, under 50 hectares. This can be good from the perspective of ensuring sustainable local procurement and green agriculture. This approach can lead to foods that are better for the health and well-being of communities. However, these small, subsistence farms will not be able to exist if they do not associate. Therefore, they will have to support agriculture in terms of green procurement, supply chain management, circular economy; they will need legislation in this field and especially these measures will have to be implemented. Environmental protection is a major goal of organic farming. Agricultural production combines the best environmental practices, maintains biodiversity, and contributes to the conservation of natural resources, supports animal husbandry and welfare, and especially respects consumers' preferences for healthy products. The challenge of the sector is to ensure the constant increase of the supply and the demand of the consumers, keeping their confidence in quality. Legislation, the evolution of society played an important role. Research and innovation are tools for overcoming the challenges posed by ecological norms. Building eco-houses, sustainable refurbishment of empty homes, and the use of eco-friendly construction materials and products have a positive impact on ecological footprints, such as CO\({}_{2}\) emissions, dust emissions, noise stress, and energy consumption, with a positive impact on health. The latest trend in sustainable landscape architecture is the establishment of horticultural crops on the roofs of public buildings in the center of cities to fix CO\({}_{2}\) and other substances with carcinogenic potential in the atmosphere, maintain a constant micro-climate inside the building and support several species of pollinators such as insects and birds. Supporting this type of activity requires minimal public allocations with seeds and fertilizers, since species resistant to drought, pollution and adapted to the local biosphere will be chosen. An incentive factor is the dissemination of ideas associated with maintaining ecological balance in large urban agglomerations through recreational and formative activities with small groups of students in such gardens in the vicinity of  
Figure 6: Integrated application of GPP and sustainable public procurement (SPP) in equilibrium between economic, social, and environmental pillars. educational centers.