Managing challenges of increasing complexity in sustainability

The paradigm under which our society and economy have operated until now has become obsolete in the 21st century. Some Nobel Prize-winner economists made it clear that we have to forget the paradigm currently dominating the global economy: "Let’s privatize the benefits and socialize (distribute) its costs as much as possible!" The results of it are extremely and rapidly increasing inequalities, followed by unmanageable socio-economic - environmental tensions. It seems we could get out of this situation only with radical social and economic transformations, both globally and at the lower levels (countries, regions, localities). There isn’t another solution just the social and economic paradigm exchange parallel with each other. Interconnected and not separated them. But many big challenges are coming up from the natural and the technological environment too and they are rooted in the human-made systems. So altogether we are facing the quickly changing complexity and an unknown situation in the history of humanity. We don't have appropriate methods and experiences how to deal with these new types of challenges but there isn't any other choice just to manage them. Despite this fact, there are very few studies about the causes and consequences of this rapidly growing problem in the era of growing sustainability risks. Similarly, there is very little practical information that provides actionable advice on how to manage these problems at different (global-, macro-, and micro-) levels of social and economic organizations. We define complexity as the number of components in a system plus the variety of relationships among these components plus the speed of changes of both the components and the relationships. Larger systems (like social - economic - ecological systems) are often very complex – but they may be more complicated if their behavior is unpredictable. Based on the global databases and reports we investigated the trials of countries how prepared they are for managing the growing complexity in the field of implementing the Sustainable Development Goals. We have found that in most of the countries (and globally too) experts are choosing the simplest way - they deal with the goals separately from each other and don't take into account the very complicated system of their interconnections and the feedback loops. We have tried to summarize some conclusions for the future about what would be the better approach to deal with the complexity.