Includes bibliographical references.Presented at the Building resilience of Mongolian rangelands: a trans-disciplinary research conference held on June 9-10, 2015 in Ulaanbaatar, Mongolia.In 2014 the Mongolian parliament approved the Green Development Policy. Out of 21 aimags, Khovd, Arkhangai, Uvurkhangai, Khentii and Bulgan aimags set an objective of prioritizing green development on their local level. This paper is based on the project "Conducting environmental and social vulnerability research of soums in five aimags leading in green development and developing strategy recommendation" and it is written using Khovd aimag as a case study. Here, in Khovd aimag's 17 soums, we evaluated eight variables including drought-dzud index, vegetation index, preventable livestock loss, prepared hay and fodder, pasture use index, degree of desertification, land degradation and surface water loss, allowing us to make an integrated assessment of ecological vulnerability. According to our analysis, the Gobi desert steppe region was defined as most vulnerable among environmental zones, and out of a total of 17 soums Altai, Uyench, Zereg, Chandmani and Duut soums were defined as most vulnerable, followed by Must, Darvi, Munkhhairkhan, Mankhan and Myangad soums. There is a need to give top priority to the planning and implementation of green policy in these ecologically more vulnerable soums by increasing their "green" budget. This will allow them to develop their capacity to adapt to climate change, decrease their vulnerability, to conduct optimal management of pasture use and have targeted preparation of hay and fodder