Over the past 1.3 million years climate in southern East Africa (unlike northern Africa) has evolved from a predominantly arid environment with high-frequency variability to generally wetter conditions with more prolonged wet and dry intervals, study finds.

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Over the past 1.3 million years climate in southern East Africa (unlike northern Africa) has evolved from a predominantly arid environment with high-frequency variability to generally wetter conditions with more prolonged wet and dry intervals, study finds.