Ethics are a broad way of thinking about what constitutes a good life and how to live one. They address questions of right and wrong, making good decisions, and the character or attributes necessary to live a good life. Applied ethics address these issues with a special emphasis on how they can be lived out in a practical manner. Environmental ethics apply ethical thinking to the natural world and the relationship between humans and the earth. Environmental ethics are a key feature of environmental studies, but they have application in many other fields as human society grapples in a more meaningful way with pollution, resource degradation, the threat of extinction, and global climate disruption.