We still know shockingly little about the sun!
What if the sun and its variable solar activity is the main cause of climate change on earth and not the harmless, life essential atmospheric trace gas CO2?
"... Our Sun is capable of some truly terrifying outbursts – and now scientists have discovered evidence of its biggest tantrum on record. Tree rings dating back around 14,000 years contain a radiocarbon spike twice as powerful as the previous biggest known solar storm. ...
In 1859, Earth was struck by the strongest solar storm in modern history. It was reported that aurora could be seen almost all the way to the equator – but it wasn’t all good news, as the spike also shorted out communications systems and even sparked fires in some telegraph stations. Now known as the Carrington Event, if a similar storm was to hit Earth today it could fry GPS satellites and knock out large sections of the power grid. ...
Scientists have since discovered several other examples, called Miyake events, within the last 15,000 years. These are found by searching for sharp spikes of radiocarbons in tree rings, or for measurements of elements like beryllium in ice cores. ...
Scientists have since discovered several other examples, called Miyake events, within the last 15,000 years. These are found by searching for sharp spikes of radiocarbons in tree rings, or for measurements of elements like beryllium in ice cores. ...
Now, scientists have found evidence of the most powerful solar storm on record – as much as 10 times more powerful than the Carrington event, and twice as strong as the previous record-holder, which blasted Earth in the year 774 CE. In the rings of ancient, partially fossilized trees in the French Alps, the team discovered an unprecedented radiocarbon spike dating back 14,300 years ago. ..."
"... Nine such extreme solar storms – known as Miyake Events – have now been identified as having occurred over the last 15,000 years. The most recent confirmed Miyake Events occurred in 993 AD and 774 AD. This newly-identified 14,300-year-old storm is, however, the largest that has ever been found – roughly twice the size of these two.
The exact nature of these Miyake Events remains very poorly understood as they have never been directly observed instrumentally. They highlight that we still have much to learn about the behaviour of the Sun and the dangers it poses to society on Earth. We do not know what causes such extreme solar storms to occur, how frequently they might occur, or if we can somehow predict them. ..."
"We present new 14C results measured on subfossil Scots Pines recovered in the eroded banks of the Drouzet watercourse in the Southern French Alps. About 400 new 14C ages have been analysed on 15 trees sampled at annual resolution. The resulting Δ14C record exhibits an abrupt spike occurring in a single year at 14 300–14 299 cal yr BP and a century-long event between 14 and 13.9 cal kyr BP. In order to identify the causes of these events, we compare the Drouzet Δ14C record with simulations of Δ14C based on the 10Be record in Greenland ice used as an input of a carbon cycle model. The correspondence with 10Be anomalies allows us to propose the 14.3 cal kyr BP event as a solar energetic particle event. By contrast, the 14 cal kyr BP event lasted about a century and is most probably a common Maunder-type solar minimum linked to the modulation of galactic cosmic particles by the heliomagnetic field. We also discuss and speculate about the synchroneity and the possible causes of the 14 cal kyr BP event with the brief cold phase called Older Dryas, which separates the Bølling and Allerød millennium-long warm phases of the Late Glacial period."
Figure 10. Δ14C records of Drouzet, Italian and German pines placed on the new chronology compared with our Δ14C simulations with the 12-box model forced with the normalized GRIP 10Be flux (brown curve) and normalized 10Be concentration record (dashed purple curve). ...
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