Recent work published by Man and Zhou reports the last millennial climate simulated by the climate system model FGOALS-gl of Chinese Academy of Sciences. The simulated global mean surface temperature difference between the Medieval Climate Anomaly (MCA) and the Little Ice Age (LIA) is 0.14°C, with enhanced warming occurred over the high-latitude NH continental regions. The present warming stage over the 20^th century is unprecedented over the last millennium in the simulation. Major features of the simulated temperature variations over China, including the MCA, LIA and the 20^th century warming, are generally consistent with the reconstructions/observations. The centennial East Asian summer monsoon variations exhibit a stronger monsoon circulation during the MCA than that during the LIA. The corresponding rainfall anomalies exhibit excessive rainfall in the north but deficient rainfall in the south. Both the zonal and the meridional thermal contrast are enhanced during the MCA. This temperature anomaly pattern favors a stronger monsoon circulation.  

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