The GISS divergence problem: Ocean Heat Content

The GISS divergence problem: Ocean Heat Content. Butter wouldn’t melt in citizen-scientist Bob Tisdale’s mouth, would it? He’s back with new proof that there’s no global warming and that them gubmint scientists is stupid. Anthony Watts approvingly notes the alleged “[denialist] reality versus [Goddard Institute for Space Studies] projection disparity” and declares “a GISS miss by a country mile.” Game over, yuck, yuck, yuck!

Tisdale’s claim is that Ocean Heat Content (OHC) hasn’t risen as fast as an old GISS model projected (note that this was not a prediction). Why? Well, because he can slap a projected straight line (Bob still loves ’em) on a chart that rises faster than the observations. Therefore, warmists are liars and their computers are too. This handily side-steps the real issue: Ocean Heat Content is unquestionably rising. We call this global warming.

Except… Even Anthony has to give Bob a nudge in the comments for failing to admit that his citizen-science fair project is showing “anomalies” i.e. deviations from the trend and not the trend itself. Sure, the target man on the street won’t spot it, but it’s like plastering “kick me” all over your own back for the benefit of informed scientific observers like Tamino, to whom Bob’s posts are like candy to a baby. Tamino indulges his sweet tooth in Favorite Denier Tricks, or How to Hide the Incline.

So how does Tisdale think he’s proven that the alarmist GISS projection of increasing OHC doesn’t match the measured increase? By using the classic denialist trick of showing the projection over a very particularly chosen time period from on a very particularly chosen point. This allows him to imply that OHC is flat but the GISS projection is increasingly divergent from “reality”. Anthony is silent on the this half of Bob’s deception because in the denialist playbook cherry-picking is enthusiastically endorsed.

The following graphic collates Tamino’s deconstruction of Bob Tisdale’s game-playing. Perhaps Bob should submit his work to the National Science Fair’s Beeville branch?

New cherry-picking and tunnel vision from Bob "Magoo" Tisdale. Deconstruction by Tamino.

Are Gulf Of Mexico Sea Surface Temperature Anomalies Near To Record Levels?

Are Gulf Of Mexico Sea Surface Temperature Anomalies Near To Record Levels?” As Anthony Watts foolishly suggests in his one sentence contribution to Bob Tisdale’s guest post, “the devil is in the details.” He is indeed…

Bob is trying to dispute the claim by meteorologist Jeff Masters that the recent Midwest deluge [was] enhanced by near-record Gulf of Mexico sea surface temperatures. Although Jeff is talking about weather, Bob Tisdale recognizes the threat. This might mean that global warming really is happening! Of course it’s not, so he accuses Jeff of  a “contrived” claim and counters that “…over the past 80 years, there is no global warming signal in the Gulf of Mexico SST data.”

My blue trend is just eyeballing but it's a lot less contrived than Bob Tisdale's flat red line in this example from his "analysis".

Unfortunately for Bob any open-eyed reader will see that every chart he tries to use as evidence reveals that he has deliberately picked dishonest comparison points that minimize the increase and he has ignored everything in-between. Details, details.

Statistics, Bob. Look into ’em. There’s a reason scientists use ’em.

Union of Concerned Scientists – Unwarranted Concern about the Northeast US

Union of Concerned Scientists – Unwarranted Concern about the Northeast US. A guest post by Alan Cheetham of Appinsys (an unskeptical version of Skeptical Science, with an interest in portraits of Mohammed). Did you know that the Union of Concerned Scientists, who are just washed-out librul anti-nuke gravy-train types, has been exaggerating climate change in the Northeastern USA? (Nothing to say about the rest of the world?)

[Across the globe, and] “here in the Northeast, the climate is changing. Records show that spring is arriving earlier, summers are growing hotter, and winters are becoming warmer and less snowy. These changes are consistent with global warming, an urgent phenomenon driven by heat-trapping emissions from human activities.” – 2006, from

“In fact”, there has been no trend in temperature change there in a hundred years, and sometimes the “record” was, like, years ago!


  • When denialists like Anthony Watts and Alan Cheetham want to present the illusion of a recent cooling period, they will reduce the number of years of temperature data until they can.
  • When denialists like Anthony and Alan want to hide recent (post 1975) AGW warming, they increase the number of years they present.
  • Denialists like Anthony and Alan will always cherry-pick a convenient location and claim that it disproves a global trend.
  • Denialists like Anthony and Alan will always fixate on an outlier if it suits their argument, the wilder the better.

Unfortunately for Anthony, in this case the “trick” is in plain sight. In all “flat” temperature graphs the trend from 1975 onwards is a rising one. Here’s an example, the “summer” temperature trend:

Alan Cheetham's "flat" temperature trend — of just the northeast USA because nothing else exists — with post-1975 trend indicated.

I guess we should listen to the Union of Unconcerned Scientists.

Are huge northeast snow storms due to global warming?

Are huge northeast snow storms due to global warming? Dr. Richard Keen, a buddy of denialist economist Roger Pielke, Jr., guest posts on Anthony Watts’ blog. Did you know that Philadelphia’s weather patterns are proof that lots of snow really does mean colder weather? Take that, Jay Lawrimore of NOAA’s National Climatic Data Center! And of course one useful city is always a refutation of what’s happening over the entire planet.

Now Richard knows you nasty warmists are going to accuse him, again, of cherry-picking a convenient example. So he reminds readers that he chose Philadelphia because he grew up there. That totally lets him off the hook.

RSS data: 2010 not the warmest year in satellite record, but a close second

RSS data: 2010 not the warmest year in satellite record, but a close second. Anthony Watts discovers that 2010 was merely the second warmest year on the satellite record, although his first version of the chart “proving” this was just a tiny bit exaggerated. Thus disproving Global Warming. Of course the declaration that 2010 is now warmest year was based on surface temperature records, not satellite observations.

Funny how a few days ago denialists were poo-pooing the slightness of 2010’s new record but are now hailing the slightness of their claim that 1998 is still the warmest.

So what was “the warmest year” in Anthony’s preferred dataset? Yes, 1998, the outlier year with a massive El Niño boost which has been the denialist “trick” for several years because it throws off short-term statistical significance. Look for this talking point to be quietly dropped over the year as moment

Pick your story from the satellite temperature observations.

USA record lows outpace record highs 19 to 1 this week

USA record lows outpace record highs 19 to 1 this week. Anthony Watts wants you to think that “snow” (somewhere) equals “cold” (everywhere) and therefore Global Warming is a fraud. His convincing evidence? One week of US data.

In 2009 Gerald Meehl published a report in ScienceDaily that the denialists have tried to undercut ever since titled Record High Temperatures Far Outpace Record Lows Across US. He used 60 years of data.

60 years beats seven days. Source: ScienceDaily.

The last paragraph in Anthony’s post shows that he knows his headline was not only misrepresentative but also only momentarily accurate (italics mine):

*Note: some people clicking on the interactive map will see different numbers, since that map will record new highs and lows as this post ages. The headline was originally based on 16 highs during the week (see the highs map for a ratio of 21 to 1) then by the time the post editing was completed and the post made, the number of highs was up to 18, giving an 18.6 to 1 (~19 to 1 in the title) ratio. Later in the day the number of record highs in the one week period increased as new weather occurred (on Dec 31) and reports came in. The numbers were accurate at the time the post started. Weather records, like weather itself are dynamic with the forward moving one week period the interactive map generator uses, so please don’t assume error if you click on the interactive map and the numbers don’t match now, or in the future. – Anthony

Quote of the Week – Total Ecplise of the Moonbat

Quote of the Week – Total Ecplise of the Moonbat. Right-wing libertarian blogger Richard North pontificates that any cold weather anywhere is proof that there is no Global Warming and that George Monbiot is somehow foolish, stupid and loathsome for not understanding that. Giving him a mocking nickname, “Moonbat”, certainly caps the argument.

Anthony Watts’ nomination of EU Referendum as a well-argued denialist website is deeply educational… Yeah, nothing like cherry-picking weather news reports to try to dismantle a journalist’s climate story. It definitely proves that the mainstream climatologists are scheming liars!