Central and Eastern European geography, shaped by its entanglement of natural and social sciences, provides a distinctive lens for rethinking the unity of the discipline. Its historical and institutional hybridity makes the region particularly well positioned to foster integrative geographical perspectives. The objective of this study was to evaluate the present, post-transitional state of the discipline in Central and Eastern Europe (CEE), to identify its future trajectory and to uncover the significant role of CEE geography in addressing global environmental, social and economic challenges. To facilitate this process, four significant geographical topics have been identified as potentially providing a conducive environment for the partial reintegration of geography. The aforementioned themes encompass a range of topics, including migrations, the green transition, anthropogenic climate change, global tipping points, wetland disturbance, peatland carbon sequestration and cryosphere degradation. Furthermore, we have sought to assess the perspective and significance of geographical unity in addressing global crises that impact human life on Earth. This analysis has enabled the identification of critical issues that necessitate integrated approaches. The necessity for enhanced collaboration between physical and human geography, as well as between nature studies and social and economic explorations, is emphasised. In this regard, it is acknowledged that a more inclusive approach is employed in the field of CEE geography, with contributions from other disciplines such as biology, ecology, physics, sociology and economics being welcomed. These disciplines address processes that span from local to global scales, as well as those that study long-term phenomena, such as history and archaeology. The establishment of robust interdisciplinary networks has the potential to enhance the scientific standing of integrated geography and to strengthen innovative connections between human and physical geography.
High Mountain Asia (HMA) shows a remarkable warming tendency and divergent trend of regional precipitation with enhanced meteorological extremes. The rapid thawing of the HMA cryosphere may alter the magnitude and frequency of nature hazards. We reviewed the influence of climate change on various types of nature hazards in HMA region, including their phenomena, mechanisms and impacts. It reveals that: 1) the occurrences of extreme rainfall, heavy snowfall, and drifting snow hazards are escalating; accelerated ice and snow melting have advanced the onset and increased the magnitude of snowmelt floods; 2) due to elevating trigger factors, such as glacier debuttressing and the rapid shift of thermal and hydrological regime of bedrock/snow/ice interface or subsurface, the mass flow hazards including bedrock landslide, snow avalanche, ice-rock avalanches or glacier detachment, and debris flow will become more severe; 3) increased active-layer detachment and retrogressive thaw slumps slope failures, thaw settlement and thermokarst lake will damage many important engineering structures and infrastructure in permafrost region; 4) multi-hazards cascading hazard in HMA, such as the glacial lake outburst flood (GLOF) and avalanche-induced mass flow may greatly enlarge the destructive power of the primary hazard by amplifying its volume, mobility, and impact force; and 5) enhanced slope instability and sediment supply in the highland areas could impose remote catastrophic impacts upon lowland regions, and threat hydropower security and future water shortage. In future, ongoing thawing of HMA will profoundly weaken the multiple-phase material of bedrock, ice, water, and soil, and enhance activities of nature hazards. Compounding and cascading hazards of high magnitude will prevail in HMA. As the glacier runoff overpasses the peak water, low flow or droughts in lowland areas downstream of glacierized mountain regions will became more frequent and severe. Addressing escalating hazards in the HMA region requires tackling scientific challenges, including understanding multiscale evolution and formation mechanism of HMA hazard-prone systems, coupling thermo-hydro-mechanical processes in multi-phase flows, predicting catastrophes arising from extreme weather and climate events, and comprehending how highland hazards propagate to lowlands due to climate change.