Big name corporations and retailers face a more serious challenge-they have to extract carbon-reduction promises from their suppliers. After all, carbon footprint calculations are only the prep work. It's only after you've identified which links in the chain are producing the most carbon and which have the greatest potential for carbon reductions that the real work of cutting carbon emissions begins.
更嚴峻的挑戰是，品牌商或通路商勢必進一步要求供應商做出減碳承諾，畢竟計算碳足跡只是前置準備──先釐清產品哪個環節排碳最多、哪個環節最具減碳空間，之後的「減碳」才是真正要緊的正事。