Environmental philosophy is a branch of philosophy that explores the relationship between humans and the natural world. It examines ethical questions about how we should treat the environment, considering the intrinsic value of nature and the rights of non-human entities. This field encourages critical thinking about our responsibilities toward ecosystems, species, and the planet as a whole. Key topics in environmental philosophy include sustainability, conservation, and the impact of human actions on the environment. Philosophers in this area often discuss concepts like deep ecology, which advocates for a fundamental shift in how we perceive our place in nature, promoting a more harmonious coexistence with the earth.