Understanding aspects of environmental science is essential for UPSC preparation due to its relevance in current affairs and sustainable development. Topics such as climate change, biodiversity, and environmental policies are integral to various subjects, including geography and ecology. Grasping these concepts aids aspirants in analyzing government initiatives, international agreements, and their implications. Moreover, environmental issues often feature prominently in ethics and governance discussions, making them critical for a holistic understanding of public administration. Candidates must stay updated on related news to effectively address these topics during examinations.