Solar Cycle 25 Blog


Posted by Co2sceptic on May 9th 2012

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When the Greek poet Homer was writing The Odyssey around 2,800 years ago, the Earth went through an abrupt period of cooling, caused by the sun - and the same could happen again soon.

Scientists at the GFZ German Research Centre for Geosciences analysed lake sediment in Lake Meerfelder Maar, and found direct evidence of a sudden cooling caused by a 'solar minimum'.

Some scientists suspect that the current period of high solar activity - including increased sunspots and solar storms this year - will be followed by a 'minimum' period, which could even cause an Ice Age.


Click source for more: also read By Jove I Think They've Nearly Got It: Climatic effects of a solar minimum and this report from Lewis Page: Solar quiet spell like the one now looming cooled climate in the past - theregister.co.uk

Posted by Co2sceptic on May 7th 2012

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Figure 1: Comparison of solar activity (blue curve) and the Asian climate development (green curve, delta 18O of a stalagmite in a Chinese cave) for the last 9000 years (both curves normalized). One clearly sees a good agreement between the two curves, which stgrongly suggests a significant climate impact by the sun. Figure from Steinhilber et al. (2012).

By Dr. Sebastian Lüning and Prof. Fritz Vahrenholt
(Translation / editing by P Gosselin)

The IPCC thinks the sun plays nary a role on climate and that anthropogenic factors explain almost the entire warming since 1850.

It’s been completely ignored that Gerard Bond was able to show more than 10 years ago that the last 10,000 years have been characterized by a global temperature roller coaster that runs up and down in sync with solar activity (Bond et al. 2001).

Posted by Co2sceptic on Apr 26th 2012

Image AttachmentImage and original *article link - ajw.asahi.com

'Little Ice Age ' (Maunder-Dalton) circulation patterns are emerging and more rapid world cooling is taking over.

Piers Corbyn, astrophysicist of WeatherAction.com (26th April) says:

"The Sun’s magnetic field is getting into a muddle as one half of it changes out of step with the other and this muddled behavior is likely to become very marked in MAY.

"This strange behavior was pointed out by Japanese researchers from the National Astronomical Observatory of Japan and the Riken research foundation* who say this was the sort of behavior which probably took place during low periods of solar activity in the past** and which drove the world into a cold state of longer winters, cold Spring months and lousy summers.

"At the same time independent observers have noticed an increase in Little Ice Age type (Maunder-Dalton type) weather events and circulation patterns around the world such as more extreme hailstorms and cyclonic cold weather in Britain and Ireland with the Jet stream shifted well south***.

Posted by Co2sceptic on Apr 21st 2012

Image AttachmentThe sun may be entering a period of reduced activity that could result in lower temperatures on Earth, according to Japanese researchers.

Officials of the National Astronomical Observatory of Japan and the Riken research foundation said on April 19 that the activity of sunspots appeared to resemble a 70-year period in the 17th century in which London’s Thames froze over and cherry blossoms bloomed later than usual in Kyoto.

In that era, known as the Maunder Minimum, temperatures are estimated to have been about 2.5 degrees lower than in the second half of the 20th century.

The Japanese study found that the trend of current sunspot activity is similar to records from that period.

The researchers also found signs of unusual magnetic changes in the sun. Normally, the sun’s magnetic field flips about once every 11 years. In 2001, the sun’s magnetic north pole, which was in the northern hemisphere, flipped to the south.