In the journey towards carbon neutrality, it is crucial for companies to set science-based targets, proactively address emissions throughout their value chains, and work towards achieving net-zero emissions across all scopes. A significant challenge is mitigating scope 1, 2 and 3 emissions, particularly upstream and downstream of core operations. What are best practices from industry leaders in encouraging suppliers to decarbonise? What policies are needed to support supply chain decarbonisation across different industries?