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Gregory has done work in the past on modeling the effect of volcanoes on ocean heat content:
http://boards.fool.com/volcanoes-oceans-models-oh-my-2955893...

He has a new paper out that looks at sea level rise over the 20th century. There has been a problem in that the rise was greater than the sum of its parts. The paper includes the contribution from volcanic forcing and re-estimates glacier melting and groundwater contributions. The researchers achieve fairly good agreement with total sea level rise, thus 'solving' the problem.

Of interest to this board, they write about a lack of acceleration in sea level rise: "The reconstructions account for the approximate constancy of the rate of GMSLR during the 20th century, which shows small or no acceleration, despite the increasing anthropogenic forcing." and "...the implication of our closure of the budget is that such a relationship [between the rate of sea-level rise and global climate change] is weak or absent during the 20th century."

Twentieth-century global-mean sea-level rise: is the whole greater than the sum of the parts?
http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00319....

DB2
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