RT null T1 Landscape-scale Planning to Support Conservation, Nomadic Livelihoods and Sustainable Development in Mongolia - Guiding Principle 3: Comprehensive Lifecycle Assessment of Sustainability A1 United Nations Environment Programme, K1 Mongolia K1 infrastructure K1 nature conservation K1 climate change mitigation K1 environmental impact assessment K1 landscape protection YR 2021 FD 2021 LK https://wedocs.unep.org/handle/20.500.11822/34974 UL https://wedocs.unep.org/handle/20.500.11822/34974 NO Infrastructure’s environmental, social, and economic sustainability should be assessed as early as possible in the planning and preparation cycle, covering both financial and non-financial factors across interdependent projects, systems and sectors over their lifecycles. Assessments should consider the cumulative impacts on ecosystems and communities as part of a broader landscape, beyond a project’s immediate vicinity, and take account of transnational impacts. DS UN Environment Document Repository RD Sep 17, 2026