Does the epistemologic scene support the problems of XXI? Which some new visions should be considered in all kind of research?

Epistemology is often treated as the central field of philosophical discussions. But, as she discusses the nature of knowledge and beliefs, she goes beyond the field of philosophy and influences all areas of modern thought, its studies and people's daily lives. All academic disciplines ask questions about method, validation, and truth: that is, epistemological questions. Science has accumulated several epistemological views over its more than four hundred years of existence. In this way, we do not speak of a single epistemological framework, but we recognize its evolution over time and in relation to the problems they seek to know.

At the same time, the 21st century marks the emergence of at least three situations never before faced by humanity. First, there was a population increase in urban centers, which today concentrate more than 50% of the world's population living in the built environment of cities. These, in turn, became an epistemological problem, as the previous models that explained them became obsolete. Furthermore, this population increase was not accompanied by public policies that would organize and maintain urban places, triggering an unprecedented crisis in their sustainability. Sustainability, then, has been thought, since the last century, as the ability of citizens to have conditions for maintaining their lives, the ability that the remains of production do not harm the natural and built environment and the guarantee of a future quality for future generations.

In order to investigate the relationship between epistemology, the built and natural environment and sustainability, we propose this presentation. It aims to elucidate the relationships between three phenomena through examples of case studies, which elucidate the new problems faced and the urgencies of epistemological research in the search for solutions through research.