Environmental problems have become a global urgent issue that needs to be responded to immediately. Islam as a religion of rahmatan lil 'alamin certainly has a relevant ecological concept to respond to this problem. This study aims to present the thoughts of Seyyed Hosein Nasr as one of the Islamic thinkers related to ecological issues and to elaborate with a case study at Garbage Clinical Insurance, Malang. This type of research is qualitative by using the method of literature study, interviews, and documentation. The researcher succeeded in revealing several findings: i) Nasr has a vision of deep ecology which is interpreted as a twin of the idea of nature as theophany encouraging humans to view nature as part of the reality of the Godhead that should not be exploited; ii) Garbage Clinical Insurance (GCI) is a business entity engaged in micro health insurance. GCI provides health services to the community by making waste of its insurance premium. This concept is certainly in line with Seyyed Hossein Nasr in the concept of deep ecology and sustainable development.