Overheated claims on global temperature records The climate alarmists are out of their minds. The warming period we are in is minor and expected. Usually, the skeptical scientists do not discuss the issue I think is paramount in the global warming hoax. But here Dr. Tim Ball addresses them directly. Please read the entire article. Below I provide some additional material and analysis. The Holocene and how it undermines climate fear mongers More below. Notice from the graph above that from 10,500 BCE to 3,500 BCE there was a Holocene thermal optimum. The average temperature during this period was much higher than the average temperature from 3,500 BCE to present. After 3,500 BCE the temperature dropped consistently to the low which occurred about 1850 AD. This is the reason the climate alarmist use 1860 as the start date for their graphs; the global temperature was at its Holocene low point. The warming since then is expected, well, unless the Earth is heading back into an ice age and that would be bad! Here is an updated post with the only Holocene global average temperature reconstruction available (Marcott et al., 2013). Update on the Holocene and how it undermines climate fear mongering "Black curve, global temperature reconstruction by Marcott et al., 2013, as in figure 37. Purple curve, Earth’s axis obliquity cycle. Red curve, CO2 levels as measured in Epica Dome C (Antarctica) ice core, reported in Monnin et al., 2004. Blue curve, methane levels as measured in GISP2 (Greenland) ice core from Kobashi et al., 2007. Notice the great effect of the 8.2 kyr event on methane concentrations. Green curve, simulated global temperatures from an ensemble of three models (CCSM3, FAMOUS, and LOVECLIM) from Liu et al., 2014, show the inability of general climate models to replicate the Holocene general temperature downward trend. Pink bar, 8.2 kyr BP climatic event. Major Holocene climatic periods are indicated."
The red spike at the end is due to proxy drop out problems and should be disregarded. The black peak at the end shows that the global temperature has returned to approximately the average temperature 1,500 BCE to 500 BCE. The recent warming was a rebound from the deep freeze that was the Little Ice Age, nothing more. The Marcott global proxy reconstruction is much worse for the climate alarmist than are the other ice core or seabed sediment cores. Marcott shows that the Holocene climate optimum lasted to about 5,500 BCE and then began to precipitously, and continuously fall to the Little Ice Age from which we have now rebounded.
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