No Sun Spots/New Ice Age?
Posted: 27 Dec 2008, 15:26
Where have all the Sunspots gone? Could we be entering a new Maunder? http://www.spaceweather.com/
The UK's Peak Oil Discussion Forum & Community
https://forum.powerswitch.org.uk/
It's interesting how this word is used. (Skeptic, I'm using your post only to throw this into the mix and not because I think you have used the word incorrectly! )skeptik wrote:It happens. No big deal.
http://science.nasa.gov/headlines/y2008 ... update.htm
"The longest minimum on record, the Maunder Minimum of 1645-1715, lasted an incredible 70 years. Sunspots were rarely observed and the solar cycle seemed to have broken down completely. The period of quiet coincided with the Little Ice Age, a series of extraordinarily bitter winters in Earth's northern hemisphere."
... purely coincidental.
In generally accepted usage it does though, Miss Picky.Keela wrote:
Using these origins, the word "coincidence" should mean simply that the events happened together. It should not refer to any judgement on whether there was a common cause or not.
That's part of how languages normally evolve. Shakespeare's full of examples. Words that we are familiar with but had subtly different meanings in his time, which you need to to be aware of in order to make full sense of what he's saying. A degree of 'translation' is needed even with English which is only a few hundred years old.Keela wrote:That was my point.... generally accepted usage has deviated from the original meaning.
You post just reminded me - I wasn't being picky of your post at all.
New Scientist wrote:None of this means that we can stop worrying about global warming caused by emissions into the atmosphere. "The temperature of the Earth in the past few decades does not correlate with solar activity at all," Solanki says. He estimates that solar activity is responsible for only 30 per cent, at most, of the warming since 1970. The rest must be the result of man-made greenhouse gases, and a crash in solar activity won't do anything to get rid of them.
What might happen is that the sun gives the planet a welcome respite from the ravages of man-made climate change - though for how long, nobody knows. During the Little Ice Age, the fall in average global temperature is estimated to have been less than 1 ?C and lasted 70 years. The one before that persisted for 150 years, but a minor crash at the beginning of the 19th century lasted barely 30. For now, we will have to keep watching for falling sunspot numbers. "The deeper the crash, the longer it will last," Weiss says.
There is a dangerous flip side to this coin. If global warming does slow down or partially reverse with a sunspot crash, industrial polluters and reluctant nations could use it as a justification for turning their backs on pollution controls altogether, makingmatters worse in the long run. There is no room for complacency, Svalgaard warns: "If the Earth does cool during the next sunspot crash and we do nothing, when the sun's magnetic activity returns, global warming will return with a vengeance."
One of my geography lecturers tells us that the Little Ice Age was probably caused by the ocean conveyor belt slowing down.skeptik wrote:It happens. No big deal.
http://science.nasa.gov/headlines/y2008 ... update.htm
"The longest minimum on record, the Maunder Minimum of 1645-1715, lasted an incredible 70 years. Sunspots were rarely observed and the solar cycle seemed to have broken down completely. The period of quiet coincided with the Little Ice Age, a series of extraordinarily bitter winters in Earth's northern hemisphere."
... purely coincidental.
Whatever caused it, think of the consequences, at least in this part of the world. Scotland went bankrupt and had to join England in order to get bailed out ("parcel of rogues in a nation" and all that), BoE was founded (1694), Russian rulers decided they "needed" a west-facing port (St Petersburg, est. 1703), turn-of-the-century famine in France, start of serious exploration for the "new world" (look at it from an ordinary sailor's p.o.v.: you wouldn't set off into the unknown like that without at least some degree of desperation: and if you wouldn't, where would the explorers find their recruits?) etc etc...Eternal Sunshine wrote:One of my geography lecturers tells us that the Little Ice Age was probably caused by the ocean conveyor belt slowing down.skeptik wrote:It happens. No big deal.
http://science.nasa.gov/headlines/y2008 ... update.htm
"The longest minimum on record, the Maunder Minimum of 1645-1715, lasted an incredible 70 years.
Erm . . . are you sure this is real?!Lamont wrote:Joe Bastardi of
Accuweather.com