'Atmospheric Scrubbing' as a counter measure against SAI

[Tom Harris]

Hi,

A new paper looks at the deployment of atmospheric scrubbers in the form of calcite particles injected into the stratosphere to counter an SAI deployment. 

This seems to be both a potential benefit and harm to climate stabilisation efforts. 

On one hand it provides an opportunity to limit the effects of an internationally un-sanctioned deployment by a rogue actor, corporation on single state.

On another it provides a single state, rouge actor etc. the ability to counter a more internationally sanctioned deployment if it's interest were threatened.

On yet another (and potentially helpful) it allows an emergency break to be available if a well intentioned and agreed deployment started causing unexpected or harmful side-effects. 

Story: https://phys.org/news/2026-06-atmospheric-cooling-effects-stratospheric-aerosol.html 

Paper: https://acp.copernicus.org/articles/26/7589/2026/acp-26-7589-2026.pdf 

Food for thought.

Tom.