地球气候历史的特征具有多变性。地球上冰川作用的时期是发生在温暖时期之后的.而寒冷和温暖时期的延续时间相差极大。关于这种变化的发生和某些周期性的产生巳知有几种原因,其它的分布是任意的,甚至在时间上是特殊的事件。本文试图根据可用资料阐述过去的气候,现代全球的平均温度,同时总结这种趋势的已知原因。 The characteristics of Earth’s climate history are volatile. The period of glaciation on Earth takes place after the warm period, while the duration of the cold and warm periods varies greatly. There are several known reasons for the occurrence of this change and some cyclical occurrences. The other distributions are arbitrary and even time-specific events. This article attempts to elaborate on the past climate, the average temperature in the modern world, based on the available data, and summarizes the known causes of this trend.