The purpose of this report is to demonstrate the value of wetlands as a way to achieve climate mitigation targets, while simultaneously unlocking co-benefits, with biodiversity conservation being chief among them. Locking Carbon in Wetlands for Enhanced Climate Action in NDCs is written for policymakers and national climate planners with three goals in mind: 1) to illustrate the scientific rationale behind the use of wetlands as a climate mitigation tool; 2) to demonstrate the prevalence and function of wetlands across landscapes and geographies; and 3) to provide a set of clear policy recommendations that will enable Parties to the UNFCCC to conserve, restore and wisely use wetlands by incorporating them into their climate mitigation plans.