This document discusses sustainability from Siemens' perspective. It begins by defining sustainability as the capacity to endure. The main issues of sustainability are then outlined as climate change, demographic change, urbanization, and globalization. The document notes that achieving sustainability will enable the earth to continue supporting human life. It provides key statistics on population growth, life expectancy, urban population increases, and global trade growth. Siemens' priorities for sustainability are also listed and described in detail. These include innovation, supply chain sustainability, resource productivity, integrity, employee satisfaction, corporate citizenship, and more. Students are then asked to develop a sustainable product or company idea and explain how it addresses three sustainability priorities.