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SUN HAS GONE INTO LOCKDOWN NEW MINI ICE AGE COMING NOW

 
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thomas davison
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PostPosted: Fri May 15, 2020 9:06 am    Post subject: SUN HAS GONE INTO LOCKDOWN NEW MINI ICE AGE COMING NOW Reply with quote

Now the sun has gone into lockdown! Reduced activity on the solar surface has sparked fears of a doomsday mini ice age. So is it time we saw the light, asks JANE FRYER

By Jane Fryer for the Daily Mail

Published: 00:32, 15 May 2020 | Updated: 08:51, 15 May 2020


Big news this week about the giant, burning, boiling, spinning thermonuclear reactor which lies 93 million miles away from Earth but is our primary source of life-­giving heat and light.

And one might be forgiven for hoping — after weeks of lockdown, far too many deaths, a largely hobbled workforce and an economy spiralling deep into recession — that it might be good news.

Forecasts of a lovely, long, blueskied barbecue summer to perk up our enforced staycations, perhaps?

Or, at the very least, a spot of predictable, settled weather to keep our battered spirits afloat. Sadly, not.
The activity on the Sun's surface has fallen dramatically, and its magnetic field has become weaker prompting a period of 'solar minimum'
+2

The activity on the Sun's surface has fallen dramatically, and its magnetic field has become weaker prompting a period of 'solar minimum'

Because it turns out that even the Sun has gone into a lockdown '­recession'. Or, more accurately, a deep period of 'solar minimum'.
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Which means that the activity on the Sun's surface has fallen dramatically, and its magnetic field has become weaker, letting into the environment more of the sort of cosmic rays that cause dramatic lightning storms and interfere with astronauts and space hardware.

They can also can lead to the explosion of 'sprites' — clusters of orange and red lights that shoot out of the top of thunderstorms like 60-mile-high palm trees in the sky.

Oh yes, and on top of all that, theoretically it could cause the temperature on Earth to drop to potentially catastrophic new lows.
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While the Met Office and members of the Royal Astronomical Society are urging us not to panic and reminding us that this is just nature, nothing to worry about and the sort of thing that happens every 11 years or so as the Sun passes through its activity cycle, some doom-and-gloomers are much less optimistic.

Perhape they're haunted by the extreme 'solar minimum' thought to have contributed to the so-called Little Ice Age in Europe in the 17th and 18th centuries, when the temperatures fell so low the River Thames froze over, crops failed, lightning storms lit up the skies, and — in 1816 — the weather was so crazy that it snowed in July.

As we all know, the Sun — which is 4.5 billion years old and more than a million times bigger than the Earth — is not only a source of cheer when it finally pops out from behind the clouds, it also keeps us all alive.

Which means that the teeniest change in its activity levels can have extraordinary consequences — triggering lightning storms, the appearance or disappearance of the Northern Lights and those amazing sprites.
An extreme 'solar minimum' is thought to have contributed to the so-called Little Ice Age in Europe in the 17th and 18th centuries, when the temperatures fell so low the River Thames froze over
+2

An extreme 'solar minimum' is thought to have contributed to the so-called Little Ice Age in Europe in the 17th and 18th centuries, when the temperatures fell so low the River Thames froze over

But the Sun's activity is changing constantly as it passes through its regular cycle, from solar maximum (hottest and most active) to solar minimum (quieter and cooler).

Since the 17th century, scientists have been measuring the depth of a solar minimum by counting the 'sunspots' — areas of m­agnetic activity on the solar surface which show up as relatively dark spots — and solar flares, large explosions that hurl charged particles into space.

The general rule is the fewer the sunspots, the more severe the minimum and the higher the chances of lightning storms, sprites and disruption on Earth.

So far this year, the Sun has been 'blank' — with no sunspots — 76 per cent of the time. A figure surpassed just once since the Fifties, last year, when it was 77 per cent blank.

So could we be heading for a grand solar minimum, a sustained period — decades, even centuries — of particularly weak solar cycles? Are we now — on top of everything else — facing another mini ice age?

While it might all sound terribly dramatic and end-of-the-world-ish, history does tell a salutary lesson.

Two hundred years ago, we were deep in the midst of the Dalton Minimum, which occurred between 1790 and 1830 and was marked by periods of brutal cold.

Temperatures fell by 2c over 20 years, which may not sound much, but had the effect of devastating the world's food production and causing widespread famine.

The misery was then exacerbated by (unrelated) powerful volcanic eruptions.

On April 10, 1815, the secondlargest volcanic eruption in 2,000 years happened at Mount Tambora in Indonesia, killing more than 71,000 people and plunging the temperature still lower, as giant ash clouds blocked the solar rays.

The following year became known as the 'year without a summer' or '­eighteen hundred and froze to death', after snow fell in July and thousands died in the famine, food riots and starvation which spread across Europe.

A typhus epidemic made things worse. Before all that came the Maunder Minimum (named after astronomer WalterMaunder), a grand solar minimum which started in 1645, took in the ice fairs on the River Thames during the reign of Charles II and dragged on for 70 years.

During this time scientists observed only 50 sunspots — compared to the 40,000 to 50,000 that we would expect during an equivalent period of 'normal' activity. So it's a relief to hear from Mathew Owens, professor of space physics at Reading University, that history is not about to repeat itself.

While he admits today's solar minimum is 'fairly deep', he insists we don't need to worry about finding ourselves in a mini ice age any time soon. 'We get a solar minimum every 11 years, so it's a fairly regular occurrence,' he says.

He also insists it needs putting in context, because any fall in temperature would be minuscule.

'After all, the last solar minimum, which we had in 2009/10, was the deepest for 100 years, and we didn't die then!'

Meanwhile, Met Office scientist Jeff Knight insists that, while a solar minimum does have an effect — contributing to very slightly colder winters (the last minimum between 2008 and 2010 coincided with some colder than usual winters in the UK) — it is very small.

'A solar minimum is likely to affect the global mean temperature, making it cooler, but by barely a 20th of a degree,' he says.

Which also means this is no get-out-of-jail-free card for global warming. 'Just because we're in a minimum, it doesn't mean global warming is going to be arrested or reversed — it has a far more subtle effect than that,' he insists.

Of course, our prime concern is that the Sun continues to shine. But happily, given we have so much on our plates at the moment, we can park that worry for another five billion years. O

AS FOR GLOBAL WARMING ---HOW CAN WORLD GOVERNMENTS NOT STOP THIS CONAVIRUS BUT WILL END GLOBAL WARMING IF YOU PAY MORE TAXES---------ITS A CON AND ALWAYS WAS , ANYONE OVER THE LAST FEW WEEKS WHO LIVE IN THE NORTH WILL KNOW THAT THE TEMPERATURE IN THE MORNING HAS BEEN 0 DEGREES, BUT NO MENTION OF IT IN THE NEWS OR BY THE HIGHLY PAID WEATHER MEN-------------TIME TO REALLY CLEAN UP OUR COUNTRY AND RID OURSELVES OF THE LYING POLITICIANS, JUDGES AND THE WOULD BE STASI POLICE HELPED BY MILLIONS OF SO CALLED PUBLIC SERVANTS ----------WHEN IT GETS TOO COLD TO GROW FOOD ,WHICH BY THE WAY I SEE OUR GREEDY FARMERS ARE STILL GROWING MILLIONS OF ACRES OF OIL SEED RAPE INSTEAD OF REAL FOOD, THERE WILL NOT ONLY BE RIOTS IN THE STREET BUT ALL THOSE LIARS WILL BE THE FIRST AGAINST THE WALL
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