This university lecture focuses on the ongoing anthropogenic destruction of nature through climate change and other forms of environmental degradation. The catastrophe poses a problem for which traditional ethical theories leave us ill-prepared, and strategies that simply apply these theories (so-called “applied ethics”) have proved unhelpful. A productive engagement needs to start from a willingness to radically rethink the categories we use to describe this historical moment and the resources we have to respond to it meaningfully. We will talk about how the environmental crisis has challenged not only engrained understandings of the relation between nature and culture but also received understandings of moral notions such as justice, responsibility, and blame. We will also consider how it brings into question familiar conceptions of political institutions such as markets, property, and states. We will attempt this kind of transformative approach to environmental crisis by reading widely—and in a fully interdisciplinary manner—in literatures, both academic and popular, taken from the natural sciences, the humanities, and critical social theories, including importantly, critical social theories focused on climate, racial, and gender-based justice. Course topics will include the Anthropocene, ecocide, ecofeminism, ecological Marxism, racial capitalism, Indigenous knowledge and rights, animal justice, anthropocentric vs. biocentric environmental ethics, responsibility (i.e., who is responsible for change?), global justice, justice vis-a-vis future generations, questions of mitigation and adaptation, and questions about meaningful political action. Students must register for both the lecture and discussion section of this course. [This ULEC is in category 1, Tools for Social Change.]