Chinanews, Beijing, Jan. 1 – China not only experienced the hottest summer and warmest autumn, but also witnessed the record high yearly temperature in 2006 in 55 years.Statistics released Saturday (Dec.30) by the China Meteorological Administration show that including China, the whole globe has tended to be warmer than before.According to experts, the average temperature in China in 2006 hit 10 degrees centigrade, 1 degree higher than average, and the highest since 1951.Moreover, the last ten summers in China saw consecutive high temperatures, unusual in 50 years.It is learned that strong sub-tropical high pressure is the main reason for China's high temperature.