Aim: to know nurses’ perceptions about the environmental sustainability within the hospital environment. Method: this is an exploratory-descriptive study, with a qualitative approach, performed in four hospitals of the 1st, 4th, 17th and 18th Regional Health Coordinations of the State of Rio Grande do Sul. It was developed between September 2013 and February 2014, with the participation of 26 nurses. Data analy...