Recommended resources for better understanding environmental issues in UPSC include comprehensive textbooks, online courses, and renowned documentaries. Books like "Environmental Studies: From Crisis to Cure" provide in-depth analysis and case studies. Online platforms like edX or Coursera offer courses on environmental science and policy. Additionally, following reputed journals and NGOs active in environmental conservation can offer real-time insights into current challenges. Engaging with relevant government reports, such as those from the Indian Ministry of Environment, provides updated and accurate information crucial for the exam.