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气候变化是引发自然灾害的重要因素之一。在漫长的地史过程中，气候周期性的变化使自然灾害的多发期呈现出一定的周期性。本文研究了不同时间尺度的气候冷热变化周期与自然灾害多发期的关系，发现气候由热变冷时期与自然灾害多发期具有很好的对应关系。从气候周期的定位结果来看，现在和21世纪是处在20、4和0．4ka气候周期中的冷时段，由此推断本世纪末和21世纪可能是自然灾害的多发期。
Climate change is one of the important factors that trigger natural disasters. In the long process of geo-history, cyclical changes in the climate have made the period of natural disasters appear more cyclical. This paper studies the relationship between climate change cycles and natural disasters at different time scales and finds that there is a good correspondence between climate change periods and natural disasters. Judging from the result of the climatic cycle, the present and 21st century are cold periods in the 20, 4 and 0.4ka climatic cycles, and it is inferred that the end of this century and the 21st century may be multiple natural disasters.