Understand that true sustainability promotes environmental equity and justice, thus eliminating environmental racism Describe the evolution of ethics leading to the modern environmental ethic In this ...Understand that true sustainability promotes environmental equity and justice, thus eliminating environmental racism Describe the evolution of ethics leading to the modern environmental ethic In this 7-minute animated video, a simple definition of sustainability is presented based on science and natural cycles, in addition to the four root causes of un-sustainability (the 4 things we need to stop doing in order to become sustainable).