The warming of mountains has become evident in recent years, with a mean global warming rate of 1.19 °C from 1979 to 2022. However, unveiling the global divergent decline of persistent mountain snow cover in the face of climate shifts remains unexplored. However, the global decline of persistent mountain snow cover due to climate change is not well understood. This study uses reanalysis and satellite data to examine changes in snow cover lasting over six months across our global mountain regions. We reveal a significant global mean decline of 7.79% in persistent snow cover over the past 44 years. The regional snow cover trends exhibit a heterogeneous and non-linear response to its regional warming rate. Our findings highlight the interplay between global warming and snow cover, emphasizing the need for sustainable development strategies to address the potential impacts of diminishing mountain snow.

近年来，山地变暖变得明显，1979 年至 2022 年全球平均变暖速率为 1.19 °C。然而，面对气候变化，揭示全球持续山地积雪的差异性下降仍有待探索。然而，由于气候变化导致全球持续山地积雪的减少尚不清楚。本研究使用再分析和卫星数据来检查全球山区持续六个月以上的积雪变化。我们揭示了在过去 44 年中，全球持续积雪平均下降了 7.79%。区域积雪趋势对其区域变暖速率表现出异质性和非线性响应。我们的研究结果强调了全球变暖与积雪之间的相互作用，强调了制定可持续发展战略以应对山地积雪减少的潜在影响的必要性。