1,140 karma · joined May 14, 2008
The best explanation, until proven otherwise, is that somebody goofed.
Something completely unknown is making tree rings too small after 1960. And if you correlate your tree ring data to post-1960 temperatures it makes historical temperature look way too high.
Bizarro-Briffa sent a similar letter to Bizarro-Nature warning of an unknown divergence problem and saying not to correlate tree rings to pre-1960 temperatures because it makes historical temperature look way too low.
This was the first time that the data was available. As McIntyre points out in the top of his post, the decline was discussed in the 1998 and 2001 Briffa papers.
Of course, scientists could not actually evaluate this because the data was not released. But that's not the issue.
The issue is, as McIntyre also points out, that the IPCC 2001 graph (and later graphs) simply truncated the climate reconstruction data in 1960 and pasted the (more accurate) direct temperature station measurement data onto the graph after 1960.
While this was done it plain sight, it's still lousy scientific practice. Why? After all, shouldn't more accurate data be used? The problem is that comparison of temperature reconstructions with direct measurement tells you a lot about the accuracy of your reconstruction.
In this case it tells you a lot about the inaccuracy of the reconstruction and the sorts of signals that are missed.
I'm sorry, the paleoclimate reconstructions available in the literature are not convincing. They often use dodgy statistical techniques, mixing data gathering steps with data correlation steps to increase apparent agreement with the instrument record. There have been huge problems with releasing data and there are often bizarre choices made in proxy record selection.
Without good paleoclimate reconstructions, it's hard to know how far outside (or inside) the historical standard deviation for temperature we are. I happen to think it's an important question to have answered. A trillion dollar question.
That said, finding this was a big deal: http://camirror.wordpress.com/2009/11/26/new-the-deleted-dat...
If you can't make value judgments about Mozart, Michelangelo, or Shakespeare, that's simply a tragedy.
I strongly recommend Barzun's "From Dawn to Decadence: 500 Years of Western Cultural Life."
To take a direct shot at relativism: I think it's quite possible to justify the West over the last 500 years as the most productive era for art and science in all of human history up until now.
The physics behind global warming makes a lot of sense. The warming models aren't pure physics, however, and require feedback effects. Now, are the models right about 6 degrees of warming in the next century? I don't have a clue because the historical climate reconstructions are so shitily done. I have no idea if the temperature anomaly over the last 30 years exceeds historical bounds for standard deviation. I have no idea what the magnitude of the Medieval Warm Period was.
This is an important question. A trillion dollar question. We need to throw the hopped-up climate scientists out, fools who were lucky to be in the field when it became important, and get some real intelligence working on this problem. Cause this ain't it.
I thought of this while I struggled to figure out why the Zefrank video was at the top on Hacker News this evening.
Maybe those people are happy because they have been saying for a while that an entire branch of human knowledge is unsound and that there is a lot of work to do over again?
Neither of those things have anything to do with "respecting the intent of the author."
Huh, is there a law about respecting author's intents?
So, you've given Google's competitor's product a try because of what Microsoft said. Maybe Microsoft knows a little about marketing after all...
Given that he's spot-on right, I'm not sure what the big deal is. The online office apps don't even compete favorably with OpenOffice, much less Microsoft Office.
On the other hand, Microsoft's Office Live offering isn't going anywhere as far as I can tell. They don't understand the importance of simple.
Then again, there's no reason, a priori, that your group can't build the better mousetrap if they've got the requisite skills and resources.
You attacked me. Wonderful way to convince others about your point.
(Hmm, maybe we need a form with "Just a flesh wound" or "I'm feeling better!" options.)
The problem with CSS is that it was designed by the sorts of people who like to design languages around vague concepts rather than design languages around getting things done. In the case of CSS, the overriding concept was semantic information. Surprise, surprise, it only turns out to be mildly useful.
The visual web was horribly crippled in order to achieve a mediocre result with a few non-visual edge cases.
"Runtime type checking" is the same thing at runtime. Errors and exceptions get thrown, your program stops. So no, that's not what we're talking about.
Here is a description of type checking: http://en.wikipedia.org/wiki/Type_system#Type_checking
I can't seem to find that statement anywhere in the article. And it hasn't been edited since September. Also, why not google for "runtime type inference": http://www.google.com/search?hl=en&client=firefox-a&...