Environmental philosophy is a branch of philosophy that explores the relationship between humans and the natural environment. It examines ethical questions about how we should treat the earth, animals, and ecosystems. This field encourages critical thinking about our responsibilities toward nature and the impact of our actions on the planet. Key topics in environmental philosophy include deep ecology, which advocates for the intrinsic value of all living beings, and eco-centrism, which emphasizes the importance of ecological systems over human interests. Philosophers like Aldo Leopold and Arne Naess have significantly contributed to this field, promoting sustainable practices and respect for nature.