From: "Mark" 

Makes sense to me. When Krakatoa erupted in 1883 it dropped the world
temperature by 1 degree (C) and the same thing happened back in 1815 when
Tambora erupted. Indeed in 1816 New England farmers claimed it was the year
without summer as the growing season was cut from the typical 160 days down
to 70 and a whole lotta people ate a whole lotta mackerel to make it
through that winter.

Uh, no I don't happen to know this off the top of my head, the above facts
and many, many more interesting tidbits are in Simon Winchester's Krakatoa
that I happen to be reading this summer 

"Rich Gauszka"  wrote in message
news:44c90e33{at}w3.nls.net...
> cooler earth with an acid rain problem?
>
> http://www.livescience.com/environment/060727_inject_sulfur.html
>
>
> One way to curb global warming is to purposely shoot sulfur into the
> atmosphere, a scientists suggested today.
>
> The burning of fossil fuels releases carbon dioxide, a greenhouse gas,
> into the atmosphere. It also releases sulfur that cools the planet by
> reflecting solar radiation away from Earth.
>
> Injecting sulfur into the second atmospheric layer closest to Earth would
> reflect more sunlight back to space and offset greenhouse gas warming,
> according to Nobel laureate Paul Crutzen from the Max Planck Institute for
> Chemistry in Germany and the Scripps Institution of Oceanography,
> University of California at San Diego.
>
> Crutzen suggests carrying sulfur into the atmosphere via balloons and
> using artillery guns to release it, where the particles would stay for up
> to two years. The results could be seen in six months.
>
> Nature does something like this naturally.
>
> When Mount Pinatubo erupted in the Philippines in1991, millions of tons of
> sulfur was injected into the atmosphere, enhancing reflectivity and
> cooling the Earth's surface by an average of 0.9 degrees Fahrenheit in the
> year following the eruption.
>
> "Given the grossly disappointing international political response to the
> required greenhouse gas emissions, ... research on the feasibility and
> environmental consequences of climate engineering of the kind presented in
> this paper, which might need to be deployed in future, should not be
> tabooed," Crutzen said.
>
> This proposal is detailed in the August issue of the journal Climatic
> Change.
>

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