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Oh dear Renato, you're still going on about things upon which your knowledge is sadly lacking. I don't think you understand replication or any other topic you are pronouncing so confidently about. I confess, I got it wrong, there are much more than a dozen replications these days, 28 subsequent papers support the basic hockey stick shape (gradual/small change over past 1000years, rapid recent warming), 14 are post-AR4. But do please keep citing Von Storch as if he disputes the basic hockey stick shape, it really is rather entertaining! And have you read Marcott et al 2013. By "read", I don't mean a blog post about it?
But while you're there, please enlighten me. We understand the magnitude of forcings over the past thousand years or so, with small changes in solar and volcanic forcing dwarfed by the modern enhanced GHG forcing, which the world is now responding to (including Antarctica). Your bonus question for ten points is this:
Lets imagine that you are right, and 29+ research papers on late Holocene climate are wrong... (I know, it's a stretch!)... and that Medieval climate was much warmer than the early 21st Century. The forcings, to which global climate responds, were small at the time (while they are large now). Would a strong MWP mean climate sensitivity to forcing is low, or high? Bonus question: would a large MWP give us any comfort at all given the scale of modern climate forcing?
Seriously mate, I really don't think you understand the topic anywhere near as much as you think you do.
Little value in discussing increasing extreme weather with you, because if you don't comprehend signal and noise in a temperature record, you'll really be stuffed when it comes to a dataset with small numbers of extreme values! You'll probably try and quote me some of Roger Pielke's porkies and half truths (he drowns signals in noise then claims no signal). And you'll be hopelessly lost with the concept that a warmer world means both more droughts and floods (enhanced hydrological cycle, more evaporation, more precipitation). But do go and buy a house that is next to a large river and surrounded by bushland if you think I'm wrong.
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