The synthesis of these studies on a common platform were marred by the fact that a very few studies looked at the whole range of nature’s contribution to people using common sets of scenarios and models. Most of the scenarios considered were Business-as-Usual scenario and there is a dearth of ‘target-seeking’ and ‘back-casting scenarios’ that would assist governments with policy developments, constituting a significant research gap. The comparison across the models in the region has been difficult due to different set of temporal, spatial and units of analysis as well as socio-economic and cultural differences. Although the region is divided by boundaries, most often biodiversity does not know any administrative bounds, adding an extra layer of complexity (especially for transboundary resources).