Read here and here. Climate alarmist scientists claim that modern warming reached "unprecedented" temperatures. As researchers continue to investigate the historical climates, new evidence is being found that the Medieval Warming was definitely warmer than our current period. Researchers in China again confirmed this by studying over 200 datasets that found Chinese winters were significantly warmer, which is shown below. (click on image to enlarge)
"Working with 200 different sets of phenological and meteorological records extracted from a number of historical sources, many of which are described by Gong and Chen (1980), Man (1990, 2004), Sheng (1990) and Wen and Wen (1996), Ge et al. produced a 2000-year history of winter half-year temperature (October to April, when CO2-induced global warming is projected to be most evident)"....""Then, abruptly, temperature entered a warm epoch from the AD 570s to 1310s with a warming trend of 0.04°C per century; the peak warming was about 0.3-0.6°C higher than present for 30-year periods, but over 0.9°C warmer on a 10-year basis." This finding pretty much speaks for itself. For a considerable amount of time during the Medieval Warm Period, this large chunk of China was warmer than has yet to be experienced in modern times over a similarly-extended time span.""
More historical charts here. Other climate history postings here. Modern temperature charts.