The document discusses green chemistry as a remedy for environmental pollution. It defines green chemistry as the generation of new products and processes that reduce or eliminate hazardous materials. The need for green chemistry is explained by new environmental problems, harmful side effects of some chemicals like DDT, and accidents. Advantages of green chemistry include being eco-friendly, energy efficient, producing less waste and safer products. The principles of green chemistry focus on preventing waste, improving atom economy in synthesis, using safer solvents and feedstocks, and designing for energy efficiency and degradation. Examples are given around safer chemical design and replacing hazardous solvents.