The landslide is located in the hinterland of water source "Studenac" in the local community Gornja Cadjavica near Bijeljina. The field where the triggered landslide occurred is conditionally stable slope. It is overgrown with forest trees and therefore it was not a subject of interest in terms of its stability until the water source and accompanying local road have been constructed in the lower part of the slope. Additionally the slope was undercut resulting in jeopardizing its conditional natural stability. At first, it was about some slight ground movements requiring no significant interventions.As the time was passing by site conditions have been changing. During winter and spring time movement of rock blocks is more intense due to large amount of surface and underground water whereby such a process was significantly slower and almost calm in the summer time. Such a cycle was repeated for several years until late 2010 when massive collapse of the unstable zone, which might be called 'landslide', endangered not only the local road but also the water source.For the purposes of overviewing the site and landslide characteristics as a whole, exhaustive researches were carried out within the part of the site affected by sliding at the surface of about 0,4 ha. A field surveying of wider area was also conducted. The landslide is located at relatively steep slope where the height distance between the crown and the toe of the landslide is 14,0 m. General slope angle is up to 10 0 and in those parts where landslides occur they are up to 25 0 . Sliding plane has been formed at depth of 2,5 to 4 m depending on terrain morphology, in clay of high plasticity (CH groups). The main cause of landslides is surface and underground water.Within the scope of remediation project two restorative measures were applied. The main recovery measure was placement of AB retaining concrete wall which was intended to accept the pressures of soil mass and to prevent it from slipping, namely to maintain the slope in stable condition. The other remedial measure was construction of an open perimeter canal at the slope above the retaining wall for the purposes of collecting surface water flowing towards the main body of the landslide and its diversion outside the sliding area.

Urban areas are formed aiming to satisfy multiple expectations of their citizens. Among the most significant expectations are resources availability, related to existential needs, efficiency in communication and satisfaction of other contemporary civilization and cultural needs. However, pursuance to create conditions for those needs satisfaction necessarily leads to high level of urban area construction. Thus, sort of paradox appears: aspiration to improvement of living conditions leads to negative effects which jeopardize the health and lives of urban population. This fact requires holistic approach, i.e. consideration of all aspects of life's needs of urban population in order to provide their long term sustainability. This paper aims to consider some aspects of urban areas sustainability relative to blue green cities philosophy.

Thermal bridges have significant influence at calculation of the energy performance classes of buildings. This especially applies to countries where energy performance classes of buildings are determined based only on energy consumption for heating (such as Serbia, Bosnia and Hercegovina, Croatia...). Significant differences arise in determining the heat losses due to thermal bridges. Differences that can occur by using simplified methods depending on national recommendations of different countries are shown in this article.

HighwayCorridor Vc as the most significant route in Bosnia and Herzegovina requires detailed analysis of geological characteristics of the field along the route of its propagation. The route is divided into several parts, according to geographical, geological and spatial properties of the field. One of the most complex sections of the highway is the section Johovac -Doboj Jug, subsection UsoraKaruse. It is not that complicated because of natural properties of the ground only but also because of inability to choose the most optimal route due to the presence of a number of residential buildings. Selected route is quite demanding in terms of field research and its construction, since it will be entirely built in the embankment, and there arefive bridges and another roadjunction along the route.By the field examination, geological properties were defined with analyzed seismicity level for the area, as well as engineering -geological and hydrogeological characteristics of the terrain. At the construction sites of prospective facilities, additional investigations will be carried out and resulting data will together with existing, constitute a basis for development of geotechnical project.

The increasing demand for energy, and environmental protection in recent years, has given an even greater importance to the use of alternative renewable energy sources. One of the most important sources of energy, used worldwide for more than 100 years, is geothermal energy. Its presence in the waters and rocks opens the possibilities for its wider use for various purposes. It plays an important role in the developed countries or in the countries that are more focused on the use of geothermal energy. However, compared to the fossil fuels that are the main source of energy, geothermal energy is used only in negligible percentage. Sudden environmental pollution in recent years, opened more space for the use of geothermal energy. Balkan countries have an important place on geothermal map of Europe, and Bosnia and Herzegovina, i.e. the Republic of Srpska stands out as a significant area where geothermal energy is accumulated as an important resource. In the Republic of Srpska there are more characteristic areas with the presence of thermal waters, but the most important is Semberija, where the temperature at depths of 1200 – 2500 m ranges from 75 – 100 0C. Possibilities of using this energy are multiple, such as heat for various purposes or in electric energy production. Its use, in the area from which it is exploited and in the area where it would be used, will change the quality of the environment because it will partially or completely replace the current use of fossil fuels.