This article talks about how scientists measure the environmental impact of products using a method called Life Cycle Assessment (LCA). LCA helps figure out how products affect the environment from start to finish, considering everything from making them to throwing them away. The method has been around for a while and has evolved with efforts to standardize it. The researchers discuss the strengths and weaknesses of LCA and suggest a new way to split up the environmental impact. They also mention plans to expand LCA to include social and economic aspects. In the end, the article looks forward to making LCA even better by including more aspects to achieve sustainability throughout the entire product life cycle.