The slightest slip up can result in huge corporate headaches. Unsatisfied with simply asking major corporations to disclose their carbon data, in 2007 the CDP established the Supply Chain Leadership Collaboration (SCLC) to encourage corporations to have their supply chains and outside manufacturers also reduce their carbon emissions. SCLC helps its members identify and manage their own carbon emissions, and calculate the carbon footprint of their entire supply chain.
此外，CDP 不滿足於只要求大企業揭露碳資訊，2007 年又發起了「供應鏈領袖聯盟」（SCLC），進一步要求大企業以「母雞帶小雞」的方式，帶動其供應鏈及衛星廠共同減碳，SCLC 則會協助會員進行追蹤和管理，並且將整體供應鏈的碳足跡整合計算。