Whatever, a fascinating area of research and one of the teasing
'variables' in the GW debate!

Martin.
yes,it's been found GCM simulations don't have realistic 'scaling' statistics,but adding volcanic
forcing proxies improves this considerably.A recent study found effects on global ppn as well-

http://www.agu.org/pubs/crossref/200...GL020044.shtml
GEOPHYSICAL RESEARCH LETTERS, VOL. 31, L12217, doi:10.1029/2004GL020044, 2004
Detection of volcanic influence on global precipitation
N. P. Gillett et al

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regards,
david
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