Marginal emission and variation across models: life-cycle assessment of a television

By evaluating two environmental aspects of televisions-lifecycle energy use and the impact of the lead in the cathode ray tube, we explore practical approaches to lifecycle assessment. Specifically, comparing the environmental impacts of different models is easier and more informative than trying to assess the environmental significance of the average impact in absolute terms. By examining the differences in energy use of similar models of televisions, we find that energy use among similar televisions varies widely. In addition, we introduce the concept of marginal emissions, and explore the application of this concept to the impact of lead from television cathode ray tube screens