4 ms·

Yes but they also emit ash which has cooling effects.

gotocake 8y ago
More critically, they emit huge amounts of sulphuric compounds, which are what really sick around and tend to cooling. Unfortunately when those same compounds don’t reach high altitudes, you get a lot of acid rain. All told however, their net effect is strongly cooling over the first few years, and then milde cooling over longer time frames.
- airstrike 8y ago
  Fantastic, thanks for the explanation. Can you please point me to a source? Need to send it to my dad who taught me everything I know but has now turned into a climate change denialist who says it's all a globalist / marxist / leftist plot to make money off solar panels.
  - gotocake 8y ago
    Absolutely, and I wish you the best of luck in representing your views to your father. I know how painful such a disconnect can be. This is a good intro to the broad issue of volcanoes and climate: http://www.cotf.edu/ete/modules/volcanoes/vclimate.html http://www.cotf.edu/ete/modules/volcanoes/vclimate.html A more in-depth treatment of sulfur aerosols in the upper atmosphere: https://en.m.wikipedia.org/wiki/Stratospheric_sulfur_aerosols https://en.m.wikipedia.org/wiki/Stratospheric_sulfur_aerosol... Here’s a breakdown of all the gasses typically releases during eruptions and their various effects: http://volcanology.geol.ucsb.edu/gas.htm http://volcanology.geol.ucsb.edu/gas.htm If there’s anything else I can do, please don’t hesitate to ask.
    - airstrike 8y ago
      Thank you so much! I will send them all three. Just because you offered and you seem so knowledgeable, he has also claimed the CFC damage to the ozone layer was a hoax created to promote alternative refrigerants... If you have anything on that I could use a link as well!
      - gotocake 8y ago
        My pleasure, and I have a great link that goes into the exact mechanism of how CFC photochemistry destroys the ozone layer. https://scied.ucar.edu/ozone-layer https://scied.ucar.edu/ozone-layer Here’s one with more technical analysis along with the exact chemistry: http://www.theozonehole.com/ozonedestruction.htm http://www.theozonehole.com/ozonedestruction.htm Here’s a broad overview with historical perspectives from the American Chemical Society: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/cfcs-ozone.html https://www.acs.org/content/acs/en/education/whatischemistry... I hope this helps.
- tomp 8y ago
  Why cooling though? It makes sense that it cools the ground, but the sunlight is still captured by the particles (as opposed to reflected by snow/water, on average), so the total Earth+atmosphere should be warmer?
PopeDotNinja 8y ago
Reminds me of global dimming. https://en.wikipedia.org/wiki/Global_dimming https://en.wikipedia.org/wiki/Global_dimming

More critically, they emit huge amounts of sulphuric compounds, which are what really sick around and tend to cooling. Unfortunately when those same compounds don’t reach high altitudes, you get a lot of acid rain. All told however, their net effect is strongly cooling over the first few years, and then milde cooling over longer time frames.

airstrike 8y ago
Fantastic, thanks for the explanation. Can you please point me to a source? Need to send it to my dad who taught me everything I know but has now turned into a climate change denialist who says it's all a globalist / marxist / leftist plot to make money off solar panels.
- gotocake 8y ago
  Absolutely, and I wish you the best of luck in representing your views to your father. I know how painful such a disconnect can be. This is a good intro to the broad issue of volcanoes and climate: http://www.cotf.edu/ete/modules/volcanoes/vclimate.html http://www.cotf.edu/ete/modules/volcanoes/vclimate.html A more in-depth treatment of sulfur aerosols in the upper atmosphere: https://en.m.wikipedia.org/wiki/Stratospheric_sulfur_aerosols https://en.m.wikipedia.org/wiki/Stratospheric_sulfur_aerosol... Here’s a breakdown of all the gasses typically releases during eruptions and their various effects: http://volcanology.geol.ucsb.edu/gas.htm http://volcanology.geol.ucsb.edu/gas.htm If there’s anything else I can do, please don’t hesitate to ask.
  - airstrike 8y ago
    Thank you so much! I will send them all three. Just because you offered and you seem so knowledgeable, he has also claimed the CFC damage to the ozone layer was a hoax created to promote alternative refrigerants... If you have anything on that I could use a link as well!
    - gotocake 8y ago
      My pleasure, and I have a great link that goes into the exact mechanism of how CFC photochemistry destroys the ozone layer. https://scied.ucar.edu/ozone-layer https://scied.ucar.edu/ozone-layer Here’s one with more technical analysis along with the exact chemistry: http://www.theozonehole.com/ozonedestruction.htm http://www.theozonehole.com/ozonedestruction.htm Here’s a broad overview with historical perspectives from the American Chemical Society: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/cfcs-ozone.html https://www.acs.org/content/acs/en/education/whatischemistry... I hope this helps.
tomp 8y ago
Why cooling though? It makes sense that it cools the ground, but the sunlight is still captured by the particles (as opposed to reflected by snow/water, on average), so the total Earth+atmosphere should be warmer?

PopeDotNinja 8y ago

Reminds me of global dimming. https://en.wikipedia.org/wiki/Global_dimming https://en.wikipedia.org/wiki/Global_dimming