**3. Methods**

Relevant literatures reviewed, summarized current estimates of the impacts of climate change as per IPCC and The World Bank data, and explained how those estimates assembled in order to identify the main sources of uncertainty and approximately affecting them. In addition, discussed scenarios of development actions and impacts, uncertainty influences and mitigation measures adopted through legal instruments and policymaker's decisions. The reviewed national and international policies, plan, strategies, Act and regulations were incorporated with the relevancy and implications in ecosystem and biodiversity and other thematic areas. AcrGIS\_10.4.1 was used to delineate land use pattern and forest cover together with identification of Physio geographic zones of Nepal with reference of GoN/MoFSC, 2018 [25] and national scale forest resource assessment carried out over the period of 2010–2014 [26]. In the decision making process, EIA legislation and its process subjected to an environmental assessment during preparation, and before adoption. Similarly, integration of EbA approach into policies and plans for facilitating EbA technology, synthesis and packaging of information and planning tools was carried out to found alternative scenario for climate change adaption with resilience ecosystem. Impacts and implication of developmental projects, legal provisions to conduct environmental assessments and mitigation strategy were identified through review pertinent documents and study of infrastructure projects such as hydropower, roads and other sectoral projects.
