The document discusses gaining visibility into Scope 3 emissions in supply chains. It notes that two-thirds of upstream emissions come from beyond tier 1 suppliers, and the largest emission sources ("hot spots") differ from tier 1 suppliers in about half of industries. It also finds geographic footprint significantly influences actual upstream emissions. The document recommends five key actions for companies: conducting a multi-tier hot spot analysis; embedding sustainability in supplier selection; integrating emissions into supply chain management; supporting ongoing supplier decarbonization; and collaborating across sectors to accelerate reductions.