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PostPosted: Fri Dec 29, 2017 12:01 pm 
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Implausible as it may seem, cosmic events many light years away can affect cloud formation on Earth. This is the conclusion reached by researchers at Denmark's Technical University.
The story goes that cosmic rays interact with the Earth's atmosphere to produce clouds. Study leader Henrik Svensmark said of the research, "Finally we have the last piece of the puzzle explaining how particles from space affect climate on Earth. It gives an understanding of how changes in solar activity or by supernova activity can change climate."
The team discovered that high energy particles from exploding stars produce ions in the atmosphere. This occurs when cosmic rays knock out electrons in air molecules, producing positive and negative molecules in the atmosphere. The ions encourage the growth and formation of cloud condensation nuclei that are necessary for cloud formation. Water droplets condense on the nuclei to form the clouds.
The team also said that variations in the Sun's magnetic field affects the influx of cosmic rays to Earth. When the Sun's magnetic field is less active, more cosmic rays enter Earth's atmosphere, producing low cloud that cools the Earth's surface. This effect could explain climate changes in the 20th century and also climate fluctuations over the past 10,000 years.
"Since clouds are necessary for the amount of solar energy reaching the surface of the Earth, the implications can be significant for our understanding of why climate has varied in the past and also for future climate changes," the study concluded.

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Last edited by brian livesey on Tue Jan 09, 2018 3:18 pm, edited 2 times in total.

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PostPosted: Mon Jan 01, 2018 4:36 pm 
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On spaceweather.com, Earth to Sky Calculus measurements show a 13% increase in stratospheric radiation between March 2015 and May 2017.
See bottom of spaceweather.com page,

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PostPosted: Tue Jan 02, 2018 5:02 pm 
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Brian & Brian
This topic seems confusingly interesting or interestingly confusing ?
We are told cosmic rays interact with the earth's atmosphere to produce clouds.
Apparently clouds are necessary for the amount of solar energy reaching the earth's surface, the implications can be significant for our understanding of why climate has varied and also further climate change - a study concluded.
Can we conclude in simple terms that "Poor weather ? - blame it on Supernovae" is a RED HERRING ?
Or is there need for another International Climate Change Meeting as soon as possible ?????
Happy new year from Cliff


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PostPosted: Wed Jan 03, 2018 2:14 pm 
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If the conclusions in this recent research prove to be in error Cliff, no doubt they'll be rectified. Science is always ready to change its position when new data comes along.

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PostPosted: Sun Jan 07, 2018 1:10 pm 
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Dear BrianL
Svensmark seems pretty confident when he says -
"Finally we have the last piece of the puzzle explaining how particles from space affect the climate on Earth. It gives an understanding of how changes in solar activity or supernovae activity can change climate."
Since from what I gather solar activity isn't supposed to affect earth's climate change much, I suppose one could say supernovae's affect is probably minimal ?
Best wishes from Cliff


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