"John Hall" wrote in message
...
In article . com,
pen writes:
Well possibly, except that I saw a snippet in New Scientist a couple of
weeks ago which said that the dust from the Krakatoa eruption hung
around in the atmsophere for up to a century, with a measurable effect
on climate.

I haven't read the article, but that doesn't sound very plausible to me.
I thought that of the order of 2-3 years was the generally accepted
figure.

(ISTR that the year after the eruption was known as "the
year without a summer").

That was actually 1816, following another volcanic eruption.

So how much of global warming is attributable
to human activity and how much to relative lack of volcanic activity?

I would prefer not to believe in anthropogenic global warning, but I've
seen enough evidence to make me a reluctant convert.

Perhaps we should be trying to help one or two isolated ones along -
not sure quite how you'd do this!

Probably just as well that we can't.
--

Yep, 1816 "The year without a summer" caused by the Tambora eruption in
1815.
Apparently the Shelly's , Byron and his physician Dr William Polidori spent
many an addled evening in a rented Villa on the banks of Lake Geneva. The
weather was so cool, wet, foul and punctuated with continuous thunder
storms, that the gloom is thought to have contributed to Mary Shelley's
inspiration for Frankenstein!!!!!!!
Nope the name is Franken stein.
Put the candle back.....