Staying updated on environmental policies is crucial in UPSC preparation due to the increasing emphasis on sustainable development and climate action in governance. Familiarity with current policies, international agreements, and national strategies enables candidates to understand the complexities of environmental issues. Integrating this knowledge into answers demonstrates a well-rounded understanding of contemporary challenges. Environmental knowledge is also vital for essay topics and interview discussions, where candidates may be questioned on related matters. Thus, continuous engagement with environmental developments is essential for aspirants aiming to serve effectively in civil services.