The diploma is result of collecting and interpreting statistical data obtained by industrially independent organizations and some of my colleagues in the field of climate change and forest fires. The main motivational drive for creation of this diploma is the desire to provide objective description of the situation in this field, where many climate studies strongly oppose the interpretation of the measured/obtained data. The content of the work describes the mechanisms of combustion, spread of fire and the effects of climate change on various aspects of forests, as ecosystems, that are important for the forest fire safety. The main topics of the discussion are the effects of elevated temperatures, movement of climatic zones, prolongation of drought periods, migration of insects, extreme weather events, economic damage, ecological damage, who is threatened and forecasts based on changing trends. By studying the trends, I wanted to primarily find out if the atmosphere is changing in Slovenia as well as in the vicinity, how it changes, what the consequences might be in the coming years, do we take sufficient preventive measures and are we able to carry out effective measures in case of the unwanted event. Forest fire is a form of uncontrolled spread of fire across the forest surface. The burning process is primarily driven by wind and low fuel humidity. The dependence of the entire process of forest fire is easily described by three interdependent factors: weather, fuel and topography. Of the three, the state of weather and fuel, are constantly present variables that have the greatest influence on the degree of risk for the occurrence of a fire, and at the same time dictate its intensity and rate of spread. In the wild, forest fires are unwanted events that threaten wildlife, environmental infrastructure and consequently also human beings. The result of a finished forest fire is most often a large burned area and at the same time enormous financial damage.