"If you can't explain the 'pause', you can't explain the cause"
Thanks to a quote-rich Andrew Revkin/New York Times article today, the updated list of excuses for the 18 year "pause" or "hiatus" of global warming has taken a quantum leap up to #52:
An updated list of at least 29 32 36 38 39 41 52 excuses for the 18 year 'pause' in global warming, including recent scientific papers, media quotes, blogs, and related debunkings:
1) Low solar activity
2) Oceans ate the global warming [debunked] [debunked] [debunked]
3) Chinese coal use [debunked]
4) Montreal Protocol
5) What ‘pause’? [debunked] [debunked] [debunked] [debunked]
6) Volcanic aerosols [debunked]
7) Stratospheric Water Vapor
8) Faster Pacific trade winds [debunked]
9) Stadium Waves
10) ‘Coincidence!’
11) Pine aerosols
12) It's "not so unusual" and "no more than natural variability"
13) "Scientists looking at the wrong 'lousy' data" http://
14) Cold nights getting colder in Northern Hemisphere
15) We forgot to cherry-pick models in tune with natural variability [debunked]
16) Negative phase of Interdecadal Pacific Oscillation
17) AMOC ocean oscillation
18) "Global brightening" has stopped
19) "Ahistorical media"
20) "It's the hottest decade ever" Decadal averages used to hide the 'pause' [debunked]
21) Few El Ninos since 1999
22) Temperature variations fall "roughly in the middle of the AR4 model results"
23) "Not scientifically relevant"
24) The wrong type of El Ninos
25) Slower trade winds [debunked]
26) The climate is less sensitive to CO2 than previously thought [see also]
27) PDO and AMO natural cycles and here
28) ENSO
29) Solar cycle driven ocean temperature variations
30) Warming Atlantic caused cooling Pacific [paper] [debunked by Trenberth & Wunsch]
31) "Experts simply do not know, and bad luck is one reason"
32) IPCC climate models are too complex, natural variability more important
30) Warming Atlantic caused cooling Pacific [paper] [debunked by Trenberth & Wunsch]
31) "Experts simply do not know, and bad luck is one reason"
32) IPCC climate models are too complex, natural variability more important
33) NAO & PDO
34) Solar cycles
35) Scientists forgot "to look at our models and observations and ask questions"
36) The models really do explain the "pause" [debunked] [debunked] [debunked]
37) As soon as the sun, the weather and volcanoes – all natural factors – allow, the world will start warming again. Who knew?
38) Trenberth's "missing heat" is hiding in the Atlantic, not Pacific as Trenberth claimed [debunked] [Dr. Curry's take] [Author: “Every week there’s a new explanation of the hiatus”]
39) "Slowdown" due to "a delayed rebound effect from 1991 Mount Pinatubo aerosols and deep prolonged solar minimum"
40) The "slowdown" is "probably just barely statistically significant" and not "meaningful in terms of the public discourse about climate change" [Josh Willis]
41) The "recent hiatus in global warming is mainly caused by internal variability of the climate" because "anthropogenic aerosol emissions from Europe and North America towards China and India between 1996 and 2010 has surprisingly warmed rather than cooled the global climate."
41) The "recent hiatus in global warming is mainly caused by internal variability of the climate" because "anthropogenic aerosol emissions from Europe and North America towards China and India between 1996 and 2010 has surprisingly warmed rather than cooled the global climate."
[Before this new paper, anthropogenic aerosols were thought to cool the climate or to have minimal effects on climate, but as of now, they "surprisingly warm" the climate]
42) 'Missing heat' is not "supported by the data itself" in the "real ocean":
"it is not clear to me, actually, that an accelerated warming of some...layer of the ocean ... is robustly supported by the data itself. Until we clear up whether there has been some kind of accelerated warming at depth in the real ocean, I think these results serve as interesting hypotheses about why the rate of surface warming has slowed-down, but we still lack a definitive answer on this topic."[Josh Willis]
43) "After some intense work by of the community, there is general agreement that the main driver [of climate the "pause"] is ocean variability. That's actually quite impressive progress." [Andrew Dessler]
44) "This [the 'pause'] is not an existential threat to the mainstream theory of climate." [Andrew Dessler]
46) " I think the findings that the heat is going into the Atlantic and Southern Ocean’s is probably pretty robust. However, I will defer to people like Josh Willis who know the data better than I do." [Andrew Dessler]. Debunked by Josh Willis, who Dessler says "knows the data better than I do," says in the very same NYT article that "it is not clear to me, actually, that an accelerated warming of some...layer of the ocean ... is robustly supported by the data itself" - Josh Willis
47) There is no "parsimonious theory [of the 'pause'] that fits all of the data" [Andrew Dessler]
48) "the argument that the hiatus will last for another decade or two is very weak and I would not put much faith in that. If the cycle has a period of 60-70 years, that means we have one or two cycles of observations. And I don’t think you can much about a cycle with just 1-2 cycles: e.g., what the actual period of the variability is, how regular it is, etc. You really need dozens of cycles to determine what the actual underlying variability looks like. In fact, I don’t think we even know if it IS a cycle." [Andrew Dessler]
49) "this brings up what to me is the real question: how much of the hiatus is pure internal variability and how much is a forced response (from loading the atmosphere with carbon). This paper seems to implicitly take the position that it’s purely internal variability, which I’m not sure is true and might lead to a very different interpretation of the data and estimate of the future." [Andrew Dessler]
50) It's the Atlantic, not Pacific, and "the hiatus in the warming...should not be dismissed as a statistical fluke" [John Michael Wallace]
" If the science is done right, the calculated uncertainty takes account of this background variation. But none of these papers, Tung, or Trenberth, does that. Overlain on top of this natural behavior is the small, and often shaky, observing systems, both atmosphere and ocean where the shifting places and times and technologies must also produce a change even if none actually occurred. The “hiatus” is likely real, but so what? The fuss is mainly about normal behavior of the climate system." [Carl Wunsch]
52) "The central problem of climate science is to ask what you do and say when your data are, by almost any standard, inadequate? If I spend three years analyzing my data, and the only defensible inference is that “the data are inadequate to answer the question,” how do you publish? How do you get your grant renewed? A common answer is to distort the calculation of the uncertainty, or ignore it all together, and proclaim an exciting story that the New York Times will pick up...How many such stories have been withdrawn years later when enough adequate data became available?" [Carl Wunsch]
52) My University screwed up the press release & didn't let me stop them from claiming my paper shows the "hiatus will last another decade or two." [Dessler]
An incomplete list of excuses |
Related:
Climate Depot Analysis: ‘There have been at least 10 separate explanations for the standstill in global warming’ – 1) Low Solar Activity; 2) Oceans Ate Warming; 3) Chinese Coal Use; 4) Montreal Protocol; 5) Readjusted past temps to claim ‘pause’ never existed 6) Volcanoes 7) Decline in Water Vapor 8) Pacific trade winds 9) ‘Coincidence’ 10) ‘Stadium Waves’
‘Warming Interrruptus’ – Causes for The Pause
Quotable Global Warming Hiatus Quotes
Can't seem to keep up with you...graphic was updated to 40 reasons this past weekend:
ReplyDeletehttp://www.c3headlines.com/2014/08/its-a-97-consensus-reasons-for-global-warming-pause-climbs-to-40-.html
Thanks C3, appreciate it
DeleteBTW - there may be some revisions on this very shortly to separate papers from media quotes so hold off for a bit on a new graphic if you're planning one. Thanks
Shall do. If you get a chance, send me an email when you publish new list. Thanks.
Deletec3headlines@gmail.com