The Tonle Sap Basin (TSB), a vital economic and cultural region in Cambodia, is experiencing significant impacts from climate change, including rising temperatures, altered rainfall patterns (drier dry seasons and wetter wet seasons), and more frequent droughts and floods. These hazards, combined with accelerating forest degradation and unsustainable land management practices—such as agricultural expansion and insufficient water conservation measures—disrupt hydrological cycles, threaten water resources and agricultural productivity, and undermine natural resource-based livelihoods and tourism, a key economic sector. Consequently, communities are adopting maladaptive practices, such as clearing forests for agriculture, which further exacerbate environmental degradation. To address these challenges, the Ministry of Environment (MoE), in collaboration with UNDP and with financial support from the Global Environment Facility (GEF), will implement a project titled “Building Resilient Livel