Global sourcing making tracing of carbon footprint difficult: Given global sourcing, tracking the carbon footprint of finished products can be difficult. Increasingly, however, new initiatives have emerged for adopting the practice of requesting a carbon footprint from suppliers. One of the examples is the carbon disclosure project that is being piloted by 11 multinationals including Dell, L'Oreal and Unilever. The project asks participating organizations to request carbon footprint Optimizing information from suppliers and promote emission optimizing reduction measures across the supply chain.