It was not a time of uniform warmth, for then, as always since the GreatIceAge, there were constant shifts in rainfall and temperature.
那并不是一个始终温暖的时期，因为在那时跟大冰期以来的任何时候都一样，降雨量和温度都在不断变化。
2
Our ancestors adapted to the universal but irregular global warming since the end of the last greatIceAge, around 10,000 years ago, with dazzling opportunism.
我们的祖先以令人眼花缭乱的机会主义，适应了自上一个大冰期结束后，约1万年前普遍但不规则的全球变暖。
3
And those plants may have caused the next greaticeage.