🚀 go-pugleaf

On 16 Dec 1996, Sheldon Scott wrote:

> Daniel J. Lavigne (taxfree@planeteer.com) wrote:
> <snip> 
> : Many global warming critics say they think 
> : sulfur haze is the solution to global warming, 
> : but fail to take into account the fact that the 
> : cooling is generally temporary and regional.  
> 
> The cooling effect of sulphur haze is no more regional than the warming
> effects of other gases.  How could it be regional?  The source of the
> sulphur is the same as that of CO2 and other gases.

Sulphate aerosals have a much shorter life-time than do the greenhouse
gases.  The average lifetime for tropospheric sulphate aerosals is around
a week, while stratospheric sulphate aerosals last for about a year.
Many of the greenhouse gases, including C02, last for centuries.
Anthropogenic sulphate aerosals - unlike anthropogenic greenhouse gases -
don't stick around long enough to achieve a non-regional geographical
distribution.


-Ivan