Landslides in the Himalayas: A Comprehensive Review of Hazards, Impacts, and Adaptive Strategies

The Himalayas, known as the ‘Third Pole’, are facing an escalating crisis due to landslides driven by climate change and human activity. The settlements in the Himalayas are increasingly vulnerable due to a surging prevalence of landslides. This systematic review investigates the repercussions of landslide hazards on the inhabitants of the Himalayan Arc and explores the causes and adaptive strategies focusing on the period from 2002 to 2022. Data dealing with the impact of landslides were systematically extracted from Scopus, Web of Science, Pascal & Francis, Science Direct, and Google Scholar databases. The review adhered to the prescribed guidelines of reporting standards for systematic evidence systems (ROSES). The frequency and severity of landslides in the Himalayas are notably high, potentially exceeding those observed in other global regions, due to a combination of specific geological, climatic, and human-induced factors. Thematic categorization identifies that the Himalayan communities confront a multifaceted challenge involving social, natural, economic, human, and physical losses induced by landslides. However, they lack adaptive capacity. The origins of these landslides are diverse, emanating from natural forces, geological phenomena, and human activities within the Himalayas. The review contributes to the understanding of the profound impact that landslides inflict upon the Himalayan region. By consolidating data from diverse databases, the study illuminates the urgent need for comprehensive strategies to bolster resilience and mitigate the escalating threats posed by landslides in this vulnerable geographic expanse.