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Volcanoes in times of climate change - causes and consequences -
Compilation of facts and theories with the opportunity to discuss
Graduate geologist Eva Dust

first inform - then discuss

Please help me to correct this page in better English, thanks

Volcanoes are now erupting more and more frequently due to climate change and questions rightly arise as to the extent to which these more frequent volcanic eruptions could influence the climate worldwide.

On this website I provide a wide range of information and the opportunity to discuss things - I am also happy to accept literature on the subject, which I then post here for everyone to read.
(send to: evadust (at) gmx.de)

Here are links from the Internet on this topic and your own conclusions
Discussion for everyone who has actually read and thought through the texts beforehand.

Unfortunately, only the first lines of the text below are displayed on the home page for the blogs, so please click around a bit to read everything.
Below you can read the first blogs in an overview. Thank you for your interest and understanding.

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Hello

I started this website about volcanoes in interaction with the climate with the aim of thinking together, supported by facts, about what the climate future could best look like for all of us

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Volcanoes erupt more frequently - how will this affect the climate?

https://de.euronews.com/green/2022/03/07/vulkane-und-klimawandel-gibt-es-einen-zusammenhang

 

https://www.mdr.de/wissen/vulkan-ausbruch-staerke-sieben-wahrscheinlich-bisher-keine-vorbereitung-100.html

 

https://www.rnd.de/wissen/vulkane-brechen-sie-diese-jahr-haeufiger-aus-als-sonst-ein-faktencheck-2RRFP7L6QNDRVCKADFONRLIMKQ.html

 

Are volcanic eruptions becoming more common?

Yes - if climate change continues like this, 58 percent of volcanoes will receive more heavy rain. With warming of just over three degrees, 42 percent of volcanoes are affected by more frequent rainfall - that's 506 mountains of fire worldwide.

https://www.tagesspiegel.de/wissen/erderwarmung-macht-vulkane-aktiver-6972946.html

 

https://www.derstandard.de/story/2000138401980/forschende-warnen-vor-unterschaetzter-gefahr-durch-vulkanausbrueche

 

https://www.vulkane.net/blogmobil/vulkanischen-zeitbomben-vei-7-vulkanausbrueche-haeufiger-als-angenommen

Why are so many volcanoes currently erupting? When temperatures rise, ice melts and sea levels rise. This in turn significantly changes the tension in the layers of earth near the volcanoes, increasing the risk of eruptions.

 

My hypothesis: More volcanoes are erupting with significantly more ash particles due to climate change. The ash particles cool the climate down again. Not forever though, like two years or so. This means everything will take longer until the end of the world.

Volcanic eruption - does the climate cool or warm?

A volcanic eruption is being blamed here for global warming. However, there are reports that the ash particles reflect sunlight and cool the climate. It probably depends on the composition of the erupted material:

https://www.wetteronline.de/wetterticker/klimawandel-im-turbomodus-schuert-tonga-eruption-die-erderwaermung--6524d5fa-cbcd-4416-bbfe-af46bec81373

 

Years ago I read scientific analyzes of this by aerosol researchers. If a larger volcano erupts in the tropics, the temperature can be cooled down by an average of 0.5 degrees for two years - if I remember correctly.

 

The question now is what type the majority of larger volcanoes are - will they emit more ash particles to cool them down or greenhouse gases that actually promote global warming? Can anyone theoretically predict this through appropriate research and analysis, or is it still too unknown what type of eruptions will be in the future?

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Vulcano

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Imprint: Eva Dust, Marienwerderallee 90b, 29225 Celle, Germany 0049 5141483114 evadust (at) gmx.de

©2023 von Vulkan. Erstellt mit Wix.com

Tabular overview - literature evaluation

  Literature number   Year of publication   Main inspection subject   factor for global warming    Climate cooling    Other/Comments
1                                    2023                                         Ash particles           
2                                    2023                                        Sulfate                                                                                                x    
3                                    2023                                         SO2            
4                                    2022                                         Sulfate aerosols                                                                               x    
5                                    2023                                         Wind            
6                                    2023                                         Aerosol sizes                                                     x                              x    
7                                    2023                                          water vapor          
8                                    2021                                          Aersosoles, SO2, CO2            
9                                    2023                                          Sulfur emission                                                                                x    
10                                  2023                                          Sulfur emission                                                                                 x    
11                                   2023                
12                                   2023                
13                                   2013                
14                                   2013                                                                                                                                           Volcanic eruptions are considered an important factor in the climate
15                                   2023                                                                                                                                                                  x    
16                                   2023                                        Lightning       
17                                   2022                                         Criticism of previous climate models
18                                   2022                                         Ash            
19                                   2015                                         Injektion/Geoenigineering                                                                          x    
20                                  2021                
21                                   2023                                        Ozon            
22                                  2023                                         Aerosolsizes            
23                                  2023                
24                                  2021                                                                                                                                                                   x    
25                                  2023                                                                                                                                                                   x    
26                                  2011                                                                                                                                                                   x    
27                                  2023                                                                                                                                                                    x    
28                                 2020                                           Sulfataerosole                                                                                               x    
29                                 2021                                            Ozon            
30                                 2023                                            CO2            
31                                  2023                                           Water vapor                                                 x        
32                                 2023                                            Size of Aersol particles                                                     The size is crucial for the scattering of sunlight
33                                 2022                                            SO2 and water vapor           
34                                 2022                                            Water vapor                                                  x        
35                                  2021                                            SO2-Spreading of the cloud           
36                                 2020                                            Troposphere and stratosphere                                 The stratosphere has deteriorated, the troposphere has improved

37                                 2022                                             Radiation equilibrium model                                                                    x       The global temperature will fall slightly in the next                                                                                                                                                                                                                                   max. 2 years, but in the long term this will not change                                                                                                                                                                                                                             the global warming trend.


According to my research, the composition of the magma changed during the last major volcanic eruptions, where an increased proportion of water vapor emissions and less sulfate aerosol brines were found. This changed chemistry is dramatic because volcanic eruptions then contribute significantly to global warming and not to cooling. There are speculations on the Internet as to why this changed chemism of the magma may be caused, but there is no scientific evidence yet. Because there are still few and new measurements, there are no reliable forecasts about future volcanic eruptions. So it can be feared that the magma has generally changed, but it doesn't have to be.

In my diploma thesis in 1988, I examined the deeper subsoil in the Rhenish Slate Mountains and the surrounding area in Germany using a wide variety of geological and geophysical data and computer simulations. In the geophysical literature I came across the model of the mantle diapir - these are upward protrusions of the Earth's mantle in smaller local areas in the subsurface. This could result in increased pressure being exerted on magma from below and possibly lead to a change in the chemistry of the magma. In my work, I also presented laboratory data from rock inclusions that come from the depths of the old Eifel volcanoes in maps depending on age. If one searches ancient literature, one may also find altered chemism of ancient volcanic rocks and their inclusions in areas of mantle diapirs.

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