尼泊尔及中国邻近地区8月26日发生严重洪灾,造成1000多人死亡,数千人失踪,其中数百人被困在水电项目隧道中1。此次灾害由基岩和冰川坍塌引发,洪水冲过多条喜马拉雅河流1。
科学家指出,全球变暖正在加速喜马拉雅山脉的冰川融化,使山洪、滑坡和雪崩等复合灾害日益频繁1。喜马拉雅地区冰川冰损失自2000年以来呈加速趋势,全球变暖速度比世界许多其他地区快得多1。近年来该地区灾难频发:2013年克达纳特洪灾、2021年查莫利灾难和2023年南洛纳克冰川湖溃决洪灾等事件已造成数千人死亡,损失数千亿美元1。
尼泊尔气候政策专家曼吉特·达卡尔指出,"适应阈值已在某些地区突破"1。气候变化可能使重建变得不可行,需要考虑居民迁移1。尼泊尔仅排放全球温室气体的0.1%,却承受着气候变化最严重的影响之一1。此外,8月26日收到短信预警的67万人中,部分游客或移民工人无法理解尼泊尔语或低估风险1。
Devastating floods struck Nepal and neighboring regions of China on August 26, leaving more than 1,000 people dead and thousands more missing 1. The disaster was triggered by the collapse of bedrock and glaciers, with floodwaters sweeping across multiple Himalayan river valleys 1. Hundreds of people remain trapped inside tunnels at hydroelectric projects in the affected areas 1.
Scientists attribute the rising frequency of such catastrophic events to accelerating glacier loss in the Himalayas, a process driven by global warming 1. The rate of ice loss in the mountain range has intensified since 2000, with temperatures warming faster there than in most other regions of the world 1. Nepal has experienced a series of recent disasters tied to this trend, including the 2013 Kedarnath floods, the 2021 Chamoli disaster, and the 2023 South Lhonak glacier lake outburst flood, which collectively claimed thousands of lives and caused hundreds of billions of dollars in losses 1.
The climate crisis poses a particular challenge for Nepal, which contributes less than 0.1 percent of global greenhouse gas emissions yet faces some of the world's most severe impacts 1. Climate policy expert Manjit Dakar warned that "adaptation thresholds have been breached in certain areas," suggesting that reconstruction may no longer be feasible in some locations and that population relocation may become necessary 1. The August 26 disaster underscored these vulnerabilities: among 670,000 people who received warning text messages, some tourists and migrant workers could not understand Nepali or underestimated the danger 1.
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