Re: Glaciers melting from climate change may reawaken the world’s most dangerous volcanoes - CNN

[John Nissen]

Hi all,

This problem [1] provides another reason for emergency cooling of the Arctic, and perhaps the Antarctic (e.g. because of the volcano under the Pine Island glacier).  The interactive map of Iceland is very clear: you scroll down to get more detailed information.

Thanks for your support in 2025, and best wishes for 2026

Cheers, John

[1] https://edition.cnn.com/interactive/2025/12/climate/melting-glaciers-climate-change-volcanic-activity-vis/

On Tue, Dec 30, 2025 at 6:28 PM John Nissen <johnnis...@gmail.com> wrote:

Glaciers melting from climate change may reawaken the world’s most dangerous volcanoes - CNN https://share.google/3NpQ2ZjdkuR5kos4Z 

[Tom Goreau]

• Article
• Open access

• Published: 30 December 2025

Sensitivity of Arctic sea ice recovery to stratospheric aerosol injection latitude

• Hyerim Kim, 
• Hyemi Kim, 
• Daniele Visioni & 
• Ewa M. Bednarz 

npj Climate and Atmospheric Science , Article number:  (2025) Cite this article

We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply.

Abstract

Under multiple anthropogenic global warming scenarios considered by the Coupled Model Intercomparison Project Phase 6 (CMIP6), Arctic sea ice is projected to disappear seasonally as early as 2035. Stratospheric Aerosol Injection (SAI) is a climate intervention strategy that has been proposed to mitigate some of the impacts of global warming. In this study, we evaluate the effectiveness of SAI in preserving Arctic sea ice, focusing on its sensitivity to the injection latitude of the aerosols. Using the 2nd version of the Community Earth System Model (CESM2) coupled with the Whole Atmosphere Community Climate Model (WACCM6), we analyze experiments with aerosol injection latitudes ranging from 45°S to 45°N. The results reveal that as the injection latitude shifts closer to the North Pole, Arctic sea ice rapidly recovers in both its extent and volume. This recovery is driven by coordinated shifts in clear-sky and cloud-related radiation, along with changes in surface reflectivity, that collectively reshape the surface energy balance in favor of ice growth. Importantly, we also find that, under fixed SAI injection rates, Arctic sea ice recovery varies substantially with injection latitude and does not scale directly with global mean surface temperature.

 

 

 

--
You received this message because you are subscribed to the Google Groups "Planetary Restoration" group.
To unsubscribe from this group and stop receiving emails from it, send an email to planetary-restor...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/planetary-restoration/CACS_Fxp-Hm9Ea_Tqz45qQaUBErKmZ_%3DSaztpinkYMoRPGAieXw%40mail.gmail.com.