McIntyre finds the Marcott ‘trick’ – How long before Science has to retract Marcott et al?

Watts Up With That? ^ | March 16, 2013 | by Anthony Watts

[Ernest_at_the_Beach]

Steve McIntyre has made what I can only describe as a stunning discovery as to why there is a sharp uptick in the main Marcott et al graph being touted by the media from its publication in Science.

It seems the uptick in the 20th century is not real, being nothing more than an artifact of shoddy procedures where the dates on the proxy samples were changed for some strange reason.

McIntyre writes:

The Marcott-Shakun Dating Service

Marcott, Shakun, Clark and Mix did not use the published dates for ocean cores, instead substituting their own dates. The validity of Marcott-Shakun re-dating will be discussed below, but first, to show that the re-dating “matters” (TM-climate science), here is a graph showing reconstructions using alkenones (31 of 73 proxies) in Marcott style, comparing the results with published dates (red) to results with Marcott-Shakun dates (black). As you see, there is a persistent decline in the alkenone reconstruction in the 20th century using published dates, but a 20th century increase using Marcott-Shakun dates. (It is taking all my will power not to make an obvious comment at this point.)

Figure 1. Reconstructions from alkenone proxies in Marcott style. Red- using published dates; black- using Marcott-Shakun dates.

…

In a follow-up post, I’ll examine the validity of Marcott-Shakun redating. If the relevant specialists had been aware of or consulted on the Marcott-Shakun redating, I’m sure that they would have contested it.

Read his entire post here.

This is going to get very interesting very fast.

[Ernest_at_the_Beach]

fyi

[Ernest_at_the_Beach]

From the comment at WUWT:

**************************************EXCERPT*********************************

cui bono says:

March 16, 2013 at 4:12 pm

7 stages of reaction to the death of yet another Hockey Stick:-

1. SHOCK & DENIAL- No, they couldn’t have done that – could they?
2. PAIN & GUILT- How could I allow my taxes to be spent on this rubbish? Maybe it’s my fault?
3. ANGER & BARGAINING- Perhaps this team could be redeployed into auto repairs.
4. “DEPRESSION”, REFLECTION, LONELINESS- Real science is dying out. Sigh. Sob.
5. THE UPWARD TURN- Wheeee! Another one bites the dust!
6. RECONSTRUCTION & WORKING THROUGH- So what were the real temperatures?
7. ACCEPTANCE & HOPE- Maybe they’ll get the message – ‘don’t mess with McIntyre’!

[Ernest_at_the_Beach]

More:

****************************************EXCERPT**************************************

• MattS says:

  March 16, 2013 at 4:25 pm

  “It is taking all my will power not to make an obvious comment at this point.”
  Hide the decline!
  http://m4gw.com/no_cap_and_trade_coalation_unveils_hide_the_decline_ii/

  

[GeronL]

back to making it up, normal for them

[Marine_Uncle]

Your statement: "This is going to get very interesting very fast."

I surely hope so Ernest. Hot to the souls of their feet in a big way.
Sort of like the poor bastard, errrrr, droid who in the original Star Wars movie,
felt the hot iron placed upon their feet.

[harpu]

4later

[ChildOfThe60s]

bump

[JimSEA]

Science and politics don’t mix any better than science and money.

[Vaquero]

I agree with your anti Gorebull warming stance. I have asked you repeatedly I private to PLEASE TAKE ME OFF YOUR PING LIST.

Now I have to do it in public. It is spam to me.

[chesley]

Science and politics is science and money.

[Moonman62]

The MSM has already reported this new Hockey Stock alarm as if it’s gospel. They could care less if somebody now finds out that it’s wrong.

[Starstruck]

You can’t make this stuff up......well maybe.