**中外科学家警告：全球极端天气气候事件出现新趋势，时间提前且复合性增强**
中新社北京4月17日电 (记者 孙自法)2023年，全球范围内极端天气气候事件的频繁发生，不仅在人们的记忆中留下深刻烙印，也引发了大气科学界的广泛关注。最新的科研成果揭示，这些极端事件正展现出前所未有的新特征。
根据4月17日发表在专业学术期刊《大气科学进展》上的合作研究报告，中外科学家指出，全球极端天气气候事件的时间轴出现了显著变化，它们的涌现时间比以往预期的要早。这一发现意味着，以往可能在夏季才会出现的极端热浪等现象，现在可能在春季甚至更早的时间就已开始显现。
此外，研究还揭示了极端天气事件的复合性增强这一新趋势。科学家解释，这意味着不同类型的极端天气，如热浪、干旱和洪水，更有可能同时或相继发生，加剧了灾害的综合影响。这种复合效应对社会经济和生态系统构成了更大的挑战，需要全球各国在防灾减灾和气候变化适应策略上进行更为精准和前瞻性的规划。
研究报告的作者们呼吁，国际社会应加强气候监测和预警系统的建设，提升对复合极端事件的预测能力，同时，需要在政策层面加强国际合作，共同应对全球气候变化带来的日益严重的环境和人类生存问题。这一研究结果为全球气候研究提供了新的视角，也为政策制定者提供了重要的科学依据。
英语如下：
**Title:**中外科学家警告：全球极端天气气候事件提前并增强，复合影响凸显
**Keywords:** extreme weather, climate events, earlier occurrence
**News Content:**
**Beijing, April 17 (Xinhua) –中外科学家警示，全球极端天气气候事件展现出新动态，提前出现且复合效应加剧。**
In 2023, the frequency of extreme weather and climate events worldwide has left a deep impression on people’s memories and sparked widespread attention in the atmospheric science community. New research findings reveal unprecedented characteristics in these extreme occurrences.
According to a collaborative research report published on April 17 in the professional academic journal *Advances in Atmospheric Sciences*, scientists from China and abroad note a significant shift in the timeline of global extreme weather events. They are occurring earlier than previously anticipated. This suggests that extreme heatwaves, which might have been expected in summer, could now manifest in spring or even earlier.
Moreover, the study highlights an emerging trend of increased compound extremity in weather events. Researchers explain that this means different types of extremes, such as heatwaves, droughts, and floods, are more likely to occur simultaneously or sequentially, amplifying the combined impact of disasters. This compound effect poses greater challenges to socioeconomic systems and ecosystems, requiring more precise and forward-thinking planning in disaster mitigation and adaptation strategies globally.
The authors of the study call for enhanced climate monitoring and early warning system development, improved prediction capabilities for compound extreme events, and increased international cooperation at the policy level to address the increasingly severe environmental and human survival issues resulting from global climate change. These findings offer a new perspective on global climate research and provide crucial scientific evidence for policymakers.
【来源】http://www.chinanews.com/gj/2024/04-17/10200727.shtml
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