气象史上有个“小冰河时期”，指的是明朝末年以后、鸦片战争以前，当时整个中国的年平均气温都比现在要低，夏天大旱与大涝相继出现，冬天则奇寒无比，不光河北，连上海、江苏、福建、广东等地都狂降暴雪。明末清初人叶梦珠撰写的《阅世编》、清朝中后期人陈其元撰写的《庸闲斋笔记》，以及《明史·五行志》、《清史稿·灾异志》等等文献中都提到了这种奇特气象。
小冰河时期的气候事件不仅仅促进了现代世界的成形。
The climatic events of the Little Ice Age did more than help shape the modern world.
事实是，克雷蒙小提琴由生长在小冰河时期的树木制成，当时整个欧洲的气温明显低于正常水平。
Turns out the Cremonese violins were made from trees that grew during a Little Ice Age, a period when temperatures across Europe were significantly lower than normal.
"这本书将详细地介绍有关小冰河时期和其它气候变化的研究过程，但是，在我开始之前，让我先介绍一下历史背景。
This book will provide a detailed examination of the Little Ice Age and other climatic shifts, but, before I embark on that, let me provide a historical context.
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