==Misrepresentation?== 
 Yes, I read the paper.  Here's what it says, "An increase by only a factor of 4 in global aerosol background concentration may be sufficient to reduce the surface temperature by as much as 3.5 ° K. If sustained over a period of several years, such a temperature decrease over the whole globe is believed to be sufficient to trigger an ice age."  That edit didn't misrepresent the paper at all.  Did you read it?  Please restore the edit.