Green Chemistry and Sustainable Technologies focus on creating environmentally friendly processes and products that minimize harm to human health and the planet. Green chemistry is based on 12 principles that aim to reduce or eliminate the use of hazardous substances, improve energy efficiency, use renewable resources, and design safer chemicals and processes. It promotes cleaner production methods, non-toxic reagents, and waste prevention at the source. Sustainable technologies apply these principles across industries by developing eco-efficient solutions such as green solvents, biodegradable materials, renewable energy systems, and low-emission manufacturing techniques. These innovations support the transition to a circular economy and help reduce environmental pollution, conserve resources, and combat climate change. Together, they play a vital role in advancing global sustainability and protecting future generations.