This document discusses various topics related to environmental management and waste management. It begins by defining waste and waste management. It then describes different types of wastes including radioactive, plastic, industrial, and human waste. Methods of waste disposal like landfills and incineration are explained. The concepts of waste minimization, reuse, recycling, energy recovery, and disposal are covered in relation to the waste hierarchy. Specific sections cover radioactive wastes, plastic waste, and sustainable forest management. Integrated water resources development and management concepts are also discussed.