Validation of my theories.
The Earth’s magnetic field, which shields us from deadly solar radiation, may be a lot more fragile and febrile than one might think, says this article from Reuters.
Illustration shows magnetic reconnection in the magnetotail triggering the onset of substorms, sudden violent eruptions that release solar energy trapped in the Earth’s magnetic field and trigger the Northern and Southern Lights.
“Scientists say earth’s magnetic field is weakening and could all but disappear in as little as 500 years as a precursor to flipping upside down.”
This, of course, is what I say in both Magnetic Reversals and Evolutionary Leaps and Not by Fire but by Ice.
“Magnetic north has migrated more than 1,500 kilometres over the past century,” said Conall Mac Niocaill, an earth scientist at Oxford University. “In the past 150 years, the strength of the magnetic field has lessened by 10 percent, which could indicate a reversal is on the cards.”
As the field dies away, the solar wind would be able to strip the atmosphere away, which would allow more cosmic radiation to make it to the surface,” said Niocaill. “Both of these things would be bad news for any life that might have formed on the surface – either wiping it out, or forcing it to migrate into the interior of the planet.”
This also is what I say in both books.
“The European Space Agency is taking the issue seriously. In November, it plans to launch three satellites to improve our fairly blurry understanding of the magnetosphere.
The project, named Swarm, will send two satellites into a 270 mile (450 km) high polar orbit to measure changes in the magnetic field, while a third satellite 318 (530 km) high will look at the influence of the sun.
DESCENT INTO CHAOS
Ciaran Beggan, a geomagnetic specialist at the British Geological Survey in Edinburgh, said studies have refined our understanding of how the field reverses.
While the entire reversal process (supposedly) takes 3,000-5,000 years, latest research suggests the descent into a chaotic state could take as little as 500 years, although there are significant holes in scientific understanding.
“Although electricity grids and GPS systems would be more vulnerable, we are not really sure how all the complex things that are linked together would react,” said Beggan.
See entire article:
Thanks to Steven Woodcock, Laurel, Ryan Hendrix and Brian Boyle for these links
“Read both of your books and loved them,” says Brian. “I don’t buy into the AGW at all. This is an article I read in the National Post recently.. Thought you would be interested. Cheers!”