Sahara’s Desertification Proves Climate Can Change Abruptly
The claim that human emissions are causing the climate to change dramatically and abruptly is used to instill fear among the population
Without human emissions, the climate would still change, but anyone who has studied climate history knows that climatic changes tends to happen abruptly, often over just a few decades.
One example is the Sahara, which wasn’t always a desert. Trees and grasslands dominated the landscape from roughly 10,000 years ago to 5,000 years ago, scientists reported in a paper published in 2013.
“Then, abruptly, the climate changed, and North Africa began to dry out.” The study published in Science says it all took just a few hundred years.
According to the authors, “Our analysis suggests that the termination of the African Humid Period in the Horn of Africa occurred within centuries, underscoring the non-linearity of the region’s hydroclimate.”
The Saharan shift is thought to have been initially triggered by more sunlight falling on Earth’s northern hemisphere as Earth’s cyclic orientation toward the sun changed.
It had nothing to do with CO2 emissions and human activities. It was all natural, and such changes are still very much natural and still very poorly understood today.
Performing weather-alteration rituals won’t make Mother Nature tamer.
See more here climatechangedispatch
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richard
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China- Historical desertification of the Mu Us Desert, Northern China: A multidisciplinary study
Abstract
The problem of historical desertification of the Mu Us desert, northern China has been paid considerable attention during the past several decades. Through the analysis of stratigraphic evidence, historical records and archaeological discoveries, this paper studied the problem using a multidisciplinary approach. The results show that two phases of serious desertification occurred during the last two millennia, one is during the mid-to-late Tang dynasty (about A.D. 800) and the other during the late Ming dynasty (about A.D. 1500–1600). Further investigation of the cause of each phase of desertification demonstrates that the former phase of desertification is closely related to abrupt climate change occurring in the mid-eighth century, but the latter, which started during the Ming dynasty and stopped at late 1980s, is not consistent with climatic causation. Therefore, we suggest that human activities contributed to the development of the latter phase of desertification.
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Jerry Krause
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Hi Pierre and Richard,
Pierre’s title of his article, “Sahara’s Desertification Proves Climate Can Change Abruptly” almost says it all and Richard’s comment reinforces the near FACT that human activities have nothing to do with this possible rapid ‘climate change.
Have a good day
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Jerry Krause
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Hi PSI Readers,
But there’s a saying ‘A picture is worth a thousand words’ and I believe that Pierre’s image makes his point better than his title or his text.
Have a good day
Reply
richard
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Let’s hear it from the hottest continent on earth-
“With rising world population and an imminent danger of food shortages in the future, Africa is well poised to become the global breadbasket and emerging as a major supplier of food. Africa undoubtedly holds large chunks of open, arable land that is being seen as a source of future food supplies for the rising population of the world.”
https://www.africa-business.com/features/land-in-africa.html
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