The significance of life cycle assessment in environmental science lies in its comprehensive evaluation of a product's environmental impacts over its entire lifespan. This includes raw material extraction, production, usage, and disposal phases. By considering these stages, life cycle assessments help to identify areas for potential improvement in sustainability practices. They aid in decision-making processes for businesses, policymakers, and consumers, driving efforts toward minimizing environmental footprints, promoting efficient resource use, and fostering more sustainable development.