 Climate warming is expected to cause alpine treelings to advance to higher elevations. However, empirical studies have shown mixed results with some areas showing no significant changes while others exhibiting more advanced treelings. These differences suggest that different regions may respond differently to climate change. It is still unclear where Himalayan treeline ecotones are located along the response gradient from rapid dynamics to apparent inertia. This paper reviews the current state of knowledge regarding the sensitivity and response of Himalayan treelings to climate warming, based on extensive field observations, published results in the widely scattered literature and novel data from ongoing research by the authors. Several indicators of sensitivity, including treeline type, treeline form, seed-based regeneration and growth patterns, were evaluated. Near-natural treelings are typically crumbholes treelings, which are less responsive to climate change. However, intense recruitment of treeline trees suggests a great potential for future treeline advance. Competition among seedlings within crumbhole thickets and dwarf scrub heaths will also be a major source of variation in treeline dynamics. Tree growth climate relationships indicate This article was authored by Ushikov, M. Babrowski, J. Bonner, and others. We are article.tv, links in the description below.