Ahead of COP28 in Dubai, the Cambridge Institute for Sustainability Leadership’s (CISL) Centre for Sustainable Finance has published a policy brief outlining how the private sector can scale up finance for climate and nature-focused action. CISL has called for policymakers to support the Bridgetown Initiative, specifically leveraging the International Development Association (IDA) for concessional finance, targeting US$279 billion, as well as establishing a US$500 billion Global Climate Mitigation Trust and introducing innovative financial and insurance climate instruments. This could “unlock significant funding for climate mitigation and adaptation”, the briefing said. It also underlined the importance of supporting diverse financing models, such as originate-and-transfer, strengthening risk management and guarantees, enhancing data transparency, and promoting collaborative platforms. For the latter, CISL said collaborative platforms should pool resources and expertise from public development banks, multilateral development banks, governments and private entities to better foster a holistic approach to sustainable investments, improve access to finance, enhance affordability, and ultimately ensure integrated and effective global climate action.