little ice age

Sun, 2012-05-20 14:29Guest
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A Scientist's Perspective: On Blogging, Comments … and Online Civil Discourse

This is a guest post authored by John Abraham, cross-posted with permission from the Yale Forum on Climate Change and the Media.


A recent posting on The Yale Forum on Climate Change & the Media website linked to a very long piece regarding climate change by Christopher Monckton.

As a practicing scientist, I recognize and value the role that The Yale Forum plays in furthering civil discussion on this topic. As a society, we have too few venues of this type where ideas can be discussed, solutions proposed, and our preconceptions challenged.

Commentary

It is not difficult to appreciate the dilemma faced by editors of sites like The Yale Forum when submissions such as that cited are offered, particularly when, as here, the respondent is addressing an earlier posting in which he or she was specifically named.

On the one hand, sites such as this want to encourage vigorous and candid debate. On the other, they must be mindful of the very extreme views taken by some participants in this discussion. Inclusion of the most extreme views may not advance the purpose of the site.

So, how does Monckton’s post fit into the category of extreme views? That, really, is the easy part.

Tue, 2012-03-20 18:11MA Rodger
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GWPF & The Hockey Stick Curve

The previous post in this series examined the Global Warming Policy Foundation (GWPF) Briefing Paper No3 “The Truth About Greenhouse  Gases”. Despite its title, Briefing Paper No3 said very little about such gases. Yet one subject (not directly to do with greenhouse gases) was discussed at some length within the paper. As it is also discussed in other GWPF papers, the subject will be examined in this fourth post of the series.

AN IMPOSSIBLE HOCKEY STICK AVERSION
In Briefing Paper No3, perhaps the strongest accusation made by the author Professor William Happer concerns the IPCC who allegedly “rewrote the climate history” by deleting the Medieval Warm Period and Little Ice Age (MWP & LIA) from the climate record.

Happer tells us that both MWP & LIA were “clearly shown in the 1990first IPCC report. Then eleven years later, according to Happer, they were both simply expunged from the climate record for no valid reason.

Indeed, within the 2001 third IPCC report the MWP & LIA are entirely absent from the graph that according to Happer is “not supported by observational data.” This is the dreaded “Hockey Stick” curve.

Can the IPCC really be responsible for such skulduggery?

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