This course provides a basic introduction to some of the most crucial theoretical issues in environmental ethics. These include different sorts and sources of value, the nature and grounds of our obligations to future human generations, the nature and grounds of our obligations to non-human animals, the contention that we have obligations to non-sentient as well as sentient organisms, and the contention that we have obligations to species and ecosystems as wholes as opposed to individual organisms within them. The course also explores ethical issues related to anthropogenic climate change.