Norwegian climate blog site avdekt.no here reports how the GISP2 ice core data from Greenland shows the current temperature is well below the Holocene average.
Moreover, these temperatures also match perfectly with the historical sources in Norway and Europe, according to avedkt.no.
The chart below shows a temperature reconstruction based on ice cores going back more than 10,000 years.
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The Present Warm period, a period of higher temperatures (but not as high as the MWP) and high economic growth and high industrial and agricultural growth, made possible with abundant fossil fuels, to support a 7.7 billion world population.
Much of the present wealth is wasted on armaments and wars, because the rules-based construct of Western slow-growing, dominating forces is being challenged by a rival rules-based construct of the fast-growing, rising forces of most of the rest of the world.
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The Little Ice Age, #10, in blue, is clearly visible, a cold period with many wars, shortages and misery
The Medieval Warm Period, #9, red, a period of high economic growth and building of Cathedrals
The Roman Warm Period, #8, red, a period of high economic growth and the building of the Roman Empire
After the RWP, came the low temperatures of the Dark Ages, which coincided with the fall of the Roman Empire
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https://avdekt.no/wp-content/uploads/2021/02/GISP2-iskjernedata-fra... 300w, https://avdekt.no/wp-content/uploads/2021/02/GISP2-iskjernedata-fra... 768w, https://avdekt.no/wp-content/uploads/2021/02/GISP2-iskjernedata-fra... 1536w, https://avdekt.no/wp-content/uploads/2021/02/GISP2-iskjernedata-fra... 1200w, https://avdekt.no/wp-content/uploads/2021/02/GISP2-iskjernedata-fra... 1980w, https://avdekt.no/wp-content/uploads/2021/02/GISP2-iskjernedata-fra... 2048w" alt="Iskjernedataene fra Grønlandland" width="612" height="315" />
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The temperature over the Holocene was above today’s level on at least 9 occasions, each spanning many years. Indeed today’s temperature is still on the cool side for the Holocene.
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Although man is having a minor warming impact on the present climate through land-use and minor greenhouse gas warming, natural solar, seismic events, and oceanic factors are far more powerful than man’s impact.
How else could the wide temperature variations, occurring during the Holocene, be explained?
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Today’s temperature is still 2°C below the warmer peaks seen 7,900, 7,000 and 3,400 years ago.
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NOTE: The Greenland GISP2 ice core is viewed as a gold standard, when it comes to proxy data-based temperature reconstructions, unlike other proxy data reconstructions, based on dubious tree ring analyses.
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