Thomas Palm wrote:

"a_plutonium" wrote in
oups.com:
So I am looking for some link between Global Warming and increased
volcano activity. In Global Warming we increase world water by the
melting to the artics and ice all over the globe. But can an increase
in ocean water activate more volcanic activity? I doubt it, or I am
skeptical of such a big influence.

It turns out changes in sea level can affect volanos to some extent due to
the changed mass distribution. There are even a few volcanoes that are so
sensitive that you can see a correlation between their eruptions and local
weather (air pressure). However those are the exeptions so I doubt there
will be much of an impact from global warming.

Neat. Of course, in retrospect, atmospheric pressure and the
distribution of the weight of sea water could have some effect on
expression of magma at the surface, particularly when the system is
fine tuned, like one of those diving sphere thermometers. I wouldn't
have thought of that, and simply dismissed the entire idea as daft.
Only 95.7% daft -- how narrow minded of me. :-)

But what about the changes in the magnetic field of earth due to Global
Warming. The reversal of the poles or migration of the magnetic poles.
Could Global Warming affect magnetic pole migration which in turn
increases volcanic activity? That sounds plausible, but I see no direct
link.

Hmm... why would it sound plausible if there is no obvious link?

Until I see a link, I must abide with the idea that Global
Warming and Volcanoes are for the most part, independent processes.

That may be the most sensible thing you have written in 10 years.

The magnetic field is generated far down in the Earth, and I see no
way it
could be affected by global warming on the surface.

That's something I've never investigated. It sounds plausible (pot
calls kettle black) on the surface -- there's a lot of iron down there,
and you've got some differential heating and some spinning and some
tidal effects and .... viola! Out pops a current!

Actually, it doesn't sound all that plausible.