The Global Medieval Warm Period

By | October 30, 2014

Between the 10th and 14th centuries AD, earth’s average global temperature may have been warmer than it is today, according to the analyses of Lamb (1977, 1984, 1988) and Grove (1988). The existence of this Medieval Warm Period was initially deduced from historical weather records and proxy climate data from England and Northern Europe. Interestingly, the warmer conditions… Read More »

Medieval Warm Period in Southern Europe

By | August 27, 2014

Was there really a global Medieval Warm Period? The IPCC used to acknowledge there was; but they have long since changed their view on the subject. Mounting evidence, however, suggests they were wrong to do so; and in this summary, new and important data from Southern Europe that support their original belief are described and discussed.

Medieval Warm Period in Central Europe

By | July 24, 2014

Was there really a global Medieval Warm Period? The IPCC used to acknowledge there was; but they have long since changed their view on the subject. Mounting evidence, however, suggests they were wrong to do so; and in this summary, new and important data from Central Europe that support their original belief are described and discussed.

Medieval Warm Period in Northern Europe

By | June 25, 2014

Was there really a global Medieval Warm Period? The IPCC used to acknowledge there was; but they have long since changed their view on the subject. Mounting evidence, however, suggests they were wrong to do so; and in this summary, both old and new important data from Northern Europe that support their original belief are described and discussed.

Medieval Warm Period in Japan

By | May 14, 2014

The Medieval Warm Period (MWP) was a global climatic anomaly that encompassed a few centuries on either side of AD 1000, when temperatures in many parts of the world were even warmer than they are currently. The degree of warmth and associated changes in precipitation, however, sometimes varied from region to region, with the result that the MWP… Read More »

Medieval Warm Period in Upper North America

By | April 16, 2014

Climate alarmists claim that rising atmospheric CO2 concentrations due to the burning of fossil fuels, such as coal, gas and oil, have raised global air temperatures to their highest level in the past one to two millennia. And, therefore, investigating the possibility of a period of equal global warmth within the past one to two thousand years has… Read More »

Medieval Warm Period in the Contiguous United States

By | February 13, 2014

Climate alarmists claim that rising atmospheric CO2 concentrations due to the burning of fossil fuels, such as coal, gas and oil, have raised global air temperatures to their highest level in the past one to two millennia. And, therefore, investigating the possibility of a period of equal global warmth within the past one to two thousand years has… Read More »

Medieval Warm Period and the World’s Oceans

By | October 29, 2013

Keigwin (1996) introduced his classic paleoclimatic study of the northern Sargasso Sea by stating that “it is important to document natural climate variability in order to understand the effects of anthropogenic forcing.” And, therefore, working with two subcores of a sediment box core retrieved from 33°41.6’N, 57°36.7’W of the undulating plateau of the northeast Bermuda Rise, he measured… Read More »

Medieval Warm Period in Other Asian Countries (Not including China, Russian or Japan)

By | October 9, 2013

Climate alarmists have long contended that the Medieval Warm Period (MWP) was not a worldwide phenomenon, primarily because that reality would challenge another of their major claims, i.e., that late 20th-century temperatures were the warmest of the past millennium or more. Thus, it is important to know what has been learned about this subject in different parts of… Read More »

Medieval Warm Period in Australia & New Zealand

By | September 25, 2013

Climate alarmists have claimed for quite some time that late-20th-century and early-21st-century global temperatures were so high as to merit the word “unprecedented” when comparing them to temperatures of the past millennium or two; and they also claim that this achievement was both driven and sustained by the carbon dioxide or CO2 released to the air by mankind’s… Read More »