The document discusses environmental issues and activities conducted by the Youth for Environment in Schools Organization (YES-O) of Tabaco National High School in Tabaco City, Philippines. It outlines the objectives of YES-O which include promoting environmental awareness, designing projects, disseminating information, and instilling environmental values. It then describes various environmental activities conducted by YES-O students, such as coastal, river, and canal cleanups, as well as tree planting and global warming seminars. The document emphasizes the importance of preserving the environment and motivating community involvement in environmental conservation efforts.