> Global Cooling from 2003 - 2014 is at the same pace as 1935 - 1946?

Global Cooling from 2003 - 2014 is at the same pace as 1935 - 1946?

Posted at: 2015-03-12 
Sceptical take on Trevor's analysis:

Assume the data looks like this

Year T RA

1998 -1

1999 0

2000 1 0

2001 2 1

2002 3 2

2003 2.9 2.633333333

2004 4 3.3

Is the temperature higher in 2003 than it was in 2002? The data says No but the running average says Yes.

That really is a trick to hide the decline.

Current temperatures seem to be modelled by a steady rise superimposed on an oscillation of some sort. One side here seems to concentrate on the steady rise which may be understood while the other concentrate on the variation which is probably not understood. There will be no meaningful discussion until both sides acknowledge both effects.

As for real, global data, I still look at this:



There has been no global cooling since @ 1960 AGW is still progressing, however for the last decade the majority of warming is going into the ocean and surface temps, although rising only slightly is still warming

The warming we have experienced the last few decades is much faster than ever seen in human history Anyone who tells you different is a moron denier with no science to back up the claim

meanwhile meteorologists continue to report record high temps!

Deniers are clinically insane!



Earth is Cooling?…No It’s Warming

http://earthobservatory.nasa.gov/Feature...

Watch COSMOS tonight for the truth!

Let’s look at the actual figures and see how valid your claims are…

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CLAIM 1: “ Global Cooling from 2003 - 2014 is at the same pace as 1935 – 1946”

Average Global Temp 2003 30yr RA = 14.46010°C

Average Global Temp 2014 30 yr RA = 14.56020°C

Outcome = warmed by 0.10010°C

Average Global Temp 1935 30yr RA = 13.88745°C

Average Global Temp 1946 30 yr RA = 13.95099°C

Outcome = warmed by 0.06354°C

CONCLUSION: Neither period showed cooling as you claimed. The magnitude of warming in both periods is similar.

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CLAIM 2: “Global Warming from 1967 - 2002 is at the same pace as 1895 - 1935? 0.1F difference”

Average Global Temp 1967 30yr RA = 13.98389°C

Average Global Temp 2002 30 yr RA = 14.45687°C

Outcome = Warmed by 0.47298°C in 35 years

Annual change = Warmed by 0.01351°C per year

Average Global Temp 1895 30yr RA = 13.62420°C

Average Global Temp 1935 30 yr RA = 13.88745°C

Outcome = Warmed by 0.26325°C in 40 years

Annual change = Warmed by 0.00658°C per year

CONCLUSION: Warming in the latter period was twice as rapid as the earlier period, not at the same pace as you claimed. The difference between the two is 0.20970°C / 0.37746°F, not 0.1°F.

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CLAIM 3a: “Since warming peeked in January of 2007”

February 1998 was the hottest month on record (14.879°C), January 2007 was the second warmest (14.850°C).

CONCLUSION: Warming did not peak in January 2007, warming is not based on monthly temperatures but long term averages.

CLAIM 3b: “Global average temperatures have averaged 0.3C cooler every month for the past 87 months”

No they haven’t. Jan 2007 temp was 14.850°C, if your claim were true then no months since then would have exceeded 14.550°C. There have been exactly 100 months where the ave global temp exceeded 14.550°C, 52 of which have occurred since Jan 2007. The most recent was last month (Apr 2014, 14.728°C, 7th warmest month on record).

CONCLUSION: You’re wrong.

CLAIM 3c: “The 57 months prior to January 2007 averaged about the same 0.3C below that peak month.”

In the 57 months prior to Jan 2007 the ave global temp was 14.57104°C, this is very close to 0.3°C below the temp of Jan 2007.

CONCLUSION: Your statement is true but completely meaningless.

CLAIM 3d: “The trend is downward and January 2007 was unusually warm or someone fudged the data.”

Trends are not based on single months as temps vary significantly from one month to the next. In Jan 2007 the ave global temp was 14.850°C, by April 2014 it was 14.728°C, on that basis there has been 0.122°C of cooling. Selecting Feb 2007 as the start point shows there has been 0.072°C of warming, selecting Jan 2008 shows 0.469°C of warming.

By cherry-picking data like you have, all I need to do is choose Jan the following year (2008) and I can then claim the world is warming by 7.5°C per century.

CONCLUSION: Cherry-picked data are meaningless and easily manipulated.

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CLAIM 4a: “January 2007 was the highest Global average temperature on record. The land records showed 1.89C above average”

Now you’ve switched to land records only. Jan 2007 had the highest land temp but it was 1.22°C above average, not 1.89°C.

CONCLUSION: Correct statement, wrong figure.

CLAIM 4b: “but the previous 57 months and the following 87 months averaged 0.3C (land-sea temps) below that record temps.”

Now it’s land and sea temps (try to be consistent). I’m guessing you’re now using the dTs and LOTI records so I’ll use the same ones.

Jan 2007 Land temp = 15.22°C

Jan 2007 Land and sea temp = 14.93°C

Ave land temp in the 57 months prior to Jan 2007 = 14.74°C

Ave land temp in the 87 months following Jan 2007 = 14.78°C

Ave land and sea temp in the 57 months prior to Jan 2007 = 14.59°C

Ave land temp in the 87 months following Jan 2007 = 14.58°C

CONCLUSION: Correct statement, your figures are wrong, the data are cherry picked, your point is invalid.

CLAIM 4c: “Seems a bit fishy when 144 out of the past 145 months average 0.3C lower than that record month. They don't fudge data do they?”

Average temp across the 144 months you refer to was 14.57626°C which is about 0.3°C cooler than the temp recorded in Jan 2007 but it’s a completely meaningless statement as you’re cherry picking data and ave global temps are based on 30 year averages, not single months (you’re out by a factor of 360).

CONCLUSION: More meaningless cherry-picking.

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We can all cherry-pick data and play silly games. Feb 2014 was 14.415°C, in March 2014 it was 14.622°C, in April it was 14.728°C. By applying your logic - the word has warmed 0.313°C in just two months, that means it will warm 1.878°C per year and at that rate by the year 2059 it will be so hot that the oceans will boil.

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EDIT: TO GRAPHIC CONCEPTION

As stated in my answer, the figures I used were 30 year running averages. 30 years is the accepted period as it is long enough to eliminate short term influences such as ENSO. As you’ve shown, picking a single year is unreliable as such short periods can, and do, go against the trend. Picking a single month is even less reliable.

The “oscillation of some sort” that you mentioned would be the Pacific Decadal Oscillation. It’s no secret that this is suppressing temperatures.

It’s also no secret that temperatures have stabilised since about 1998.

But did you know that the PDO peaked in 1997 and has declined to it’s lowest level since then. This means there should have been significant cooling but it’s not happened. The last time the PDO was negative was from c1930 to 1960 and temperatures levelled off then as well. When the PDO switched to positive the temps rose rapidly. The PDO will be switching to positive soon, this will be a disaster for the sceptics.



LOL! You denialists are so pathetic.

1.You link is about U. S. weather, and there is nothing global about it.

2. A single month is weather

3. All four of your time frames are warming periods. Although the warming did slow down in the period from 2003. But the warming trend from 1967-2002 was stronger than the warming from 1895-1935. But the initial "cooling" period from which we are supposed to compare to recent cooling was the strongest warming trend of them all.

http://www.woodfortrees.org/plot/gistemp...

graphicconception

The claim that the global average temperature is the same on both graphs is a lie.

http://www.woodfortrees.org/plot/hadcrut...

Oops, you forgot to mention that you were provincial and were only talking about the U.S.

That's a funny kind of "Global" you're talking about.

And that's an incredibly stupid plot...they must work really hard to make things as misleading as possible.

Not yet, but it is difficult to say with all the adjusted temperatures around nowadays.

But snowfall in the northern hemisphere is increasing. http://notrickszone.com/2014/05/30/veter...