THE ABNORMAL PERIODS OF CLIMATE IN CHINA OVER THE PAST 5000 YEARS AND THEIR CAUSES

This paper points out that (1) there were 5 abnormal periods of climate in China over the last 1000 years, in which the frequency, the severity and the influenced area of such calamities as low temperature, drought and flood increased greatly; (2) there were 3 or 4 worse periods of climate over the past 5000 years which were more severe than the above-mentioned climate; (3) the momental effect of the geocentric synods of nine planets is one of the important causes for the formation of the abnormal and worse periods of climate; and (4) from the 1960s to about 2000 A.D. China and the entire Northern Hemisphere would probably undergo another abnormal period of climate.