Comunidades epistémicas en la solución de problemas ambientales. Tendencias en la recuperación de ríos urbanos

The objective of the article is to remark the relevance of the social and political dimensions in the urban river restoration initiatives. The author assumes that there are several cognitive frames to understand the river pollution. Epistemic community is a useful concept in order to develop this kind of plurality. The epistemic community consolidation lies in the opening and continuity of deliberative spaces. This theoretical proposal is illustrated with different cognitive frames from actors interviews, identified in the  government initiative to build an epistemic community to rescue the Magdalena river, located in Mexico City.