Geological and botanical archives can preserve evidence of exceptional floods going back centuries to millennia. Updated risk guidelines offer a new opportunity to apply lessons from paleoflood hydrology to judge the odds of future floods.

中文翻译：

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泛洪卷土重来

地质和植物档案可以保存几百年来数百年来的特大洪水证据。更新的风险准则为应用古洪水水文学的经验教训来判断未来洪水的可能性提供了新的机会。