If we are talking about Latham's proposal, there would be no reason to make 
clouds in winter. 

If stratospheric sulfate aerosols in the right size range they should be too 
small to have a big impact on outgoing long wave. 

So, seems likely to be a non-issue. 

Ken Caldeira
[email protected]
+1 650 704 7212
http://dge.stanford.edu/labs/caldeiralab

Sent from a limited-typing keyboard

On Mar 20, 2012, at 21:55, Michael Hayes <[email protected]> wrote:

> 
> Folks,
>  
> As the Arctic situation is the weakest of the weak links in our environment 
> and Stratospheric Particle Injection is a front runner of SRM methods, I 
> believe this is a profoundly important issue. Will a cloud of SRM particles 
> mimic a Winter Time Polar Stratospheric Cloud's ability to trap IR energy?
> Andrew has blocked my previous efforts to raise this question and I ask that 
> he simply stop censoring this group.
>  
> Michael
> -- 
> Michael Hayes
> 360-708-4976
> http://www.voglerlake.com 
>  
> 

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