A major reduction in global deforestation is needed to mitigate climate change and biodiversity loss. Recent private sector commitments aim to eliminate deforestation from a company’s operations or supply chain, but they fall short on several fronts. Company pledges vary in the degree to which they include time-bound interventions with clear definitions and criteria to achieve verifiable outcomes. Zero-deforestation policies by companies may be insufficient to achieve broader impact on their own due to leakage, lack of transparency and traceability, selective adoption and smallholder marginalization. Public–private policy mixes are needed to increase the effectiveness of supply-chain initiatives that aim to reduce deforestation. We review current supply-chain initiatives, their effectiveness, and the challenges they face, and go on to identify knowledge gaps for complementary public–private policies.

为了减轻气候变化和生物多样性的丧失，需要大幅度减少全球森林砍伐。最近的私营部门承诺旨在消除公司运营或供应链中的森林砍伐，但在几个方面都达不到。公司的承诺在不同程度上包括有时限的干预措施，这些干预措施应具有明确的定义和标准，以实现可验证的结果。由于泄漏，缺乏透明度和可追溯性，选择性采用以及小农边缘化，公司的零森林砍伐政策可能不足以对自己产生更广泛的影响。需要采用公私政策相结合的方式来提高旨在减少森林砍伐的供应链计划的有效性。我们回顾了当前的供应链计划，其有效性以及所面临的挑战，