![]() ![]() Moreover, with the current grade of interconnection between nations, cities and citizens in all conceivable fields, the contemporary risks and threats to security directly affect a majority of the world’s population. Meanwhile, on the local level, they are obliged to look for ways out of urban problems which, due to their complexity and limited resources, seem difficult to resolve. The mechanisms of international cooperation established throughout the 20 th century seem to be reaching their limitations a number of emerging countries with spectacular economic and demographic growth rates have been calling for a revision of the system. This tendency has very important economic, social and political implications. The vast majority of this growth will occur in Asian and African cities, while in the developed countries, two thirds of the urban growth will be attributed immigration (legal and illegal). ![]() The World Bank estimates that, with the current urbanization rate, not less than 6.4 billion people will be living in cities by 2050. The number of people living in cities has grown steadily, reaching 50 per cent of the world’s population, or 3.3 billion people, in 2007. According to recent statistics, it is clear that the 21 st century has been and will continue to be an urban one. ![]()
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