The empirical evidence continues to mount that documents the Roman and Medieval unprecedented warming - dust storms from the Aral Sea is the latest empirical evidence
Read here. The adjacent image is a classic example of the extreme environmental devastation produced by progressive / left government regime scientists. Although scientific geo-engineering has destroyed the Aral Sea, its historical evidence still provides further proof that modern global warming is not unprecedented.
The Huang et al. peer reviewed research analyzed 2000 years of dust storm residue and unequivocally determined that both Roman and Medieval minimum temperatures were higher than modern minimum temperatures for this central Asia region - a clear indication of warmer climates during earlier historical periods.
"Noting that dust storms are common features adjacent to the Aral Sea, the authors investigated the grain-size distributions of wind-blown sediments found in a core retrieved from that water body...report that the history of dust deposition in central Asia can be divided into five distinct periods on the basis of their observations: "a remarkably low deposition during AD 1-350, a moderately high value from AD 350-720, a return to a relatively low level between AD 720 and AD 1400 (including the Medieval Warm Period), an exceptionally high deposition from AD 1400 to [the] 1940s and an abnormally low value since [the] 1940s."...coincides with the Roman Warm Period, the second with the Dark Ages Cold Period, the third (as Huang et al. make a point of noting) with the Medieval Warm Period, the fourth with the Little Ice Age, and the fifth with the Current Warm Period...with low/high annual temperature anomalies corresponding to high/low dust supplied in the Aral Sea sediments, respectively...the minimum value of this inverted measure of annual temperature during the Medieval Warm Period was approximately 13% more extreme than the minimum value so far experienced during the Current Warm Period, and that the minimum value during the Roman Warm Period was fully 70% more extreme than that of the present." [Xiangtong Huang, Hedi Oberhänsli, Hans von Suchodoletz, Philippe Sorrel 2011: Quaternary Science Reviews]
Conclusion: Historical climate change, as represented by the Roman and Medieval unprecedented warming documented in central Asia, was a global phenomenon that modern climate change has yet to rival.
Previous climate-history and peer-reviewed postings. Historical and modern temperature charts.
