Some bloke called Marcel Crok plays a cruel climate joke on Anthony Watts at WUWT

This is sad. A ratbag from Europe, Marcel Crok, who is considered by Anthony Watts to be a "good friend" (enough said), has written to Anthony asking him to consult his network of "experts" (cached version).

What a horrid and cruel trick Marcel is playing on his supposed "good" friend.

Of course, it might be Marcel is unfamiliar with WUWT and is not a very close friend of Anthony's. He may not know that Anthony has no "network of experts". On the other hand, Marcel could have been wondering what the dregs of climate conspiracy land will say about the wave of extreme events happening around the world. (As far as I can make out, Marcel is a freelance writer who could be considered the equivalent of David Rose, who in turn has a well-earned reputation as a climate disinformer from the UK.)

"It's not the sun". Another look at what would happen if there were a Maunder Minimum this century.

Today WUWT-ers are in a dilemma. They are being asked to look at a climate discussion about the role of the sun in climate change. (The WUWT article is archived here.) Marcel Crok has posed a question for discussion at Climate Dialogue, namely:

What will happen during a new Maunder Minimum?

This question has been discussed at HotWhopper in the past, for example, here and here. And here is a link to a scientific paper on the subject, and one to a realclimate.org article. Even a grand solar minimum would only have a small temporary impact on global temperatures compared to the impact of rising greenhouse gases.

If you want to read the discussion by scientists, go to Climate Dialogue. The scientists who have presented their various scientific findings are:

• Mike Lockwood from the University of Reading
• Nicola Scafetta from Duke University
• Jan-Erik Solheim from the University of Oslo
• Ilya Usoskin from the University of Oulu
• José Vaquero from Universidad Carlos III de Madrid

The only public comment that appears so far is by Jos Hagelaars.

Around the traps: GWPF and global warming, BEST daily temperatures and an El Niño watch

Some blog articles worth reading.

Ed Hawkins (and others) on a GWPF article on climate sensitivity

First Ed Hawkins has written about some article Nic Lewis and Marcel Crok wrote for the GWPF.  Actually it was two articles reports, a short version with 44 pages cover to cover and a long version with 72 pages cover to cover.  Ed makes the point that not before time is the GWPF acknowledging that we are heading to dangerous warming of more than two degrees by the end of the century if we keep burning fossil fuels at the rate we are.  The other points he makes are about why Nic Lewis is probably erring on the low side in his estimate of climate sensitivity.

Greg Laden has also written a good article on the topic of the Lewis and Crok article, which you can read here.  Bob Ward took down Nic Lewis' recent testimony to a UK parliamentary committee (along with that of other deniers).

I can't really add anything to what these people have written, except to say that Judith Curry wrote a foreword to Nic and Marcel's articles, with effusive praise for Nic and Marcel and slightly more muted "appreciation" for the GWPF.  Plus maybe a hint that they asked her to find a publisher, which she couldn't manage to do.

While writing this Foreword, I considered the very few options available for publishing a report such as this paper by Lewis and Crok. I am appreciative of the GWPF for publishing and publicizing this report. Public accountability of governmental and intergovernmental climate science and policy analysis is enhanced by independent assessments of their conclusions and arguments.

Victor Venema on the daily temperature dataset from BEST

The other article I'll point you to is by Victor Venema.  He's saying "Be careful with the new daily temperature dataset from Berkeley".  And continues:

The Berkeley Earth Surface Temperature project now also provides daily temperature data. On the one hand this is an important improvement, that we now have a global dataset with homogenized daily data. On the other hand, there was a reason that climatologists did not publish a global daily dataset yet. Homogenization of daily data is difficult and the data provided by Berkeley is likely better than analyzing raw data, but still insufficient for robust conclusions about changes in extreme weather and weather variability.

It's worth a read - Victor is a specialist in climate temperature data.

RealClimate has an article by Zeke Hausfather and Robert Rohde, two of the BEST team members behind the new data set.

Jeff Masters on El Niño watch

You read it here at HotWhopper first of course :)  Then NOAA announced it.  Jeff Masters has now written about it too. There may be an El Niño on its way later this year.

Jeff points to this earlier article by Michael Ventrice at wunderground.com that is worth reading. (I wrote something about ENSO here some weeks ago, which has more links to the subject,)

Update: Webb Roberts ‏(@webbr) pointed me to another article about this from Kim Cobb's Lab at Georgia Tech, suggesting it could provide a rare opportunity for scientific study and learning more about ENSO, if resources can be put together in time.