If on, on the one hand, the commitments to reduce climate risks made by large companies take into account the direct emission of greenhouse gases emitted directly or by their energy suppliers, on the other hand, it is common for them to leave aside the supply chain - an essential element in moving toward a greener and more sustainable economy. The entire process leading to a product or service - from raw materials to transportation and distribution - must be involved in the overall ESG efforts. Without considering a company's entire supply chain, ESG measures do not capture the global networks that today's large and small companies depend on for daily operations. This event aims to discuss the significance, opportunities, and challenges of advancing sustainability criteria in supply chains, the so-called scope 3.