Take, for instance, the cement industry. Since it creates only one product, the emissions baseline is calculated simply by the amount of greenhouse gas emissions typically produced to create a metric ton of cement. Yet since the steel industry produces numerous products, separate emissions baselines are being established for each of them.
以水泥業為例，因只有單一產品，以生產每公噸熟料的排放額作基準；鋼鐵業有多項產品，則分別公告不同製程產品的排放強度。