Is Cosmic Ray Influence on Cloud Cover and Climate Overlooked?

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In summary, the article explores the potential impact of cosmic rays on cloud formation and climate, suggesting that this influence may be underestimated in climate models. It discusses the mechanisms by which cosmic rays could affect cloud properties, emphasizing the need for further research to understand their role in climate variability and to improve climate predictions. The authors argue for a more integrated approach in climate science that considers cosmic rays alongside other factors.
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Blargus
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Henrik Svensmark and Nigel Calder's Book The Chilling Stars mentions Svensmark's paper and experiments that apparently show that global cloud cover is regulated by cosmic rays which is regulated by the sun or solar and geo- magnetic fields.

This fits with remarks by MIT Climatology Professor Emeritus Richard Lindzen that the main greenhouse gases are water vapor and clouds with CO2 being minor:

"That said, the main greenhouse substances in the earth’s atmosphere are water vapor and high clouds. Let’s refer to these as major greenhouse substances to distinguish them from the anthropogenic minor substances. Even a doubling of CO2 would only upset the original balance between incoming and outgoing radiation by about 2%. This is essentially what is called “climate forcing.”"
https://www.wsj.com/articles/SB10001424052748703939404574567423917025400

So this is science that I venture to say doesn't seem to get discussed because of the politicization of climate science if anyone's interested.

Summary of Svensmark's work and documentary on him from Science journalist coauthor Nigel Calder:
‘Our clouds take their orders from the stars,’
https://calderup.wordpress.com/category/3-climate-change/3e-the-cloud-mystery/

Svensmark's paper in the Proceedings for the Royal Society

https://www.researchgate.net/profil...e-nucleation-under-atmospheric-conditions.pdf
 
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Blargus said:
So this is science that I venture to say doesn't seem to get discussed because of the politicization of climate science
After an admittedly 'fast and dirty' skimming over the related publications and aftermath, instead a 'silenced' one it looks rather like an already discussed and largely discarded pet theory which just couldn't make the impact but kept on table anyway.

Ps.: Good that there are alternative and scientific attempts, but given that the directions for proving it were already marked almost a decade ago but not much results arriving afterwards, I would say it's safe to stick to the mainstream. Especially since I don't think the forum would be (or: should be) participate in the debate itself.
 
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Thread closed for moderation.
 
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Rive said:
After an admittedly 'fast and dirty' skimming over the related publications and aftermath, instead a 'silenced' one it looks rather like an already discussed and largely discarded pet theory which just couldn't make the impact but kept on table anyway.

Ps.: Good that there are alternative and scientific attempts, but given that the directions for proving it were already marked almost a decade ago but not much results arriving afterwards, I would say it's safe to stick to the mainstream. Especially since I don't think the forum would be (or: should be) participate in the debate itself.
Good summary. After a Mentor discussion, this thread will remain closed.
 
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FAQ: Is Cosmic Ray Influence on Cloud Cover and Climate Overlooked?

What are cosmic rays?

Cosmic rays are high-energy particles that originate from outer space and travel through the universe. They consist mainly of protons, but can also include heavier nuclei and electrons. When these particles enter the Earth's atmosphere, they can interact with atmospheric gases, leading to the production of secondary particles and ionization.

How do cosmic rays potentially influence cloud formation?

One proposed mechanism for the influence of cosmic rays on cloud formation is through their ability to ionize the atmosphere. This ionization can lead to the formation of aerosol particles, which serve as cloud condensation nuclei. An increase in these nuclei can enhance cloud formation, potentially affecting cloud properties and climate.

Is there scientific consensus on the impact of cosmic rays on climate?

While there is ongoing research into the relationship between cosmic rays, cloud cover, and climate, there is currently no scientific consensus. Some studies suggest a correlation between cosmic ray intensity and cloud cover, while others find little to no effect. The complexity of climate systems makes it challenging to isolate the influence of cosmic rays from other factors.

What are the main challenges in studying cosmic rays and climate?

One of the main challenges in studying the influence of cosmic rays on climate is the difficulty in obtaining long-term, high-quality data on cosmic ray fluxes and cloud properties. Additionally, climate is influenced by a multitude of factors, including greenhouse gas concentrations, solar activity, and natural variability, making it hard to attribute changes in climate solely to cosmic rays.

What are the implications if cosmic rays do influence climate?

If cosmic rays are found to have a significant influence on climate, it could lead to a reevaluation of climate models and our understanding of climate change. It may also suggest that cosmic events, such as solar flares or supernovae, could have more immediate impacts on Earth's climate than previously thought, highlighting the need for a more integrated approach to studying climate systems.

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