Shaikh Hamza Yusuf began by outlining that the purpose of human existence is to cultivate the earth, worship God, and establish leadership. He used evidence from the Quran and scientific sources to support claims about humans being responsible for illnesses and environmental destruction by abandoning their role as caretakers of nature. For example, global warming and depletion of sea creatures show humans ignoring their duty. Diseases are also a result of exceeding limits, like increasing obesity. Islamic economics can help curb the exploitation of nature and moral erosion by positioning economic actions within the Quranic framework. This would allow humans to properly govern themselves and the world to accomplish their role as leaders and achieve salvation.