Fig. 2 (IMAGE) Science China Press Caption Power spectrum analysis results of the annual and rainy-season δ18Op, precipitation (Precip) and surface air temperature (Temp) series in the CA, SA and EA regions in the past 300,000 years. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.