The Society perceives the dangers as threats, challenges and risks. Risk is defined as direct and assumed threat. Most of all, the highest risks in modern society are likely asymmetric.They include the whole sphere of human activity and they are accompanying man in almost everything he does. As...

It is known that the environment and the human society often support the actions of some dangerous phenomena of different origins,natural or anthropogenic, that may cause destructive and brutal disturbances in some systems or default situations. In the following, some natural catastrophic events...

The paper contains analyses about the effects of global warming and climate change. The impacts of climate change may be physical,ecological, social or economic. Evidence of observed climate change includes the increasing temperature, CO2 emissions, droughts, floods, etc. Human activities have...