Tag Archives: pacific decadal oscillation

Setting the record straight on ‘the cause of pause in global warming’

Guest essay by Don J. Easterbrook, Dept. of Geology, Western Washington University Last week in my post ‘‘The cause of pause in global warming,” I presented data showing that the lack of global warming was not the ‘biggest mystery in … Continue reading

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Posted in Opinion, PDO | Tagged , | 172 Comments

New study shows Pacific Decadal Oscillation and sea surface temperature drive US tornado strength

From the University of Missouri-Columbia, one more example of how natural variation has trumped the supposed forcing of CO2 to make ‘bad weather’. Pacific ocean temperature influences tornado activity in US, MU study finds COLUMBIA, Mo. – Meteorologists often use … Continue reading

Posted in PDO, Sea Surface Temperature, tornadoes, Weather | Tagged , | 48 Comments

Chylek et al 2013 shows a linkage between US Southwest climate and AMO/PDO cycles

This paper suggests that the CMIP5 models’ (which IPCC relies upon) predicted US SW temperature sensitivity to the GHG has been significantly overestimated by about a factor of two. Imprint of the Atlantic multi-decadal oscillation and Pacific decadal oscillation on … Continue reading

Posted in AMO, Climate sensitivity, PDO | Tagged , , | 28 Comments

New paper from Dr. Judith Curry could explain ‘the pause’

From the Georgia Institute of Technology ‘Stadium waves’ could explain lull in global warming One of the most controversial issues emerging from the recent Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) is the failure of global climate … Continue reading

Posted in Hiatus in Global Warming | Tagged , , , , , | 296 Comments

Climate change is dominated by the water cycle, not carbon dioxide

Guest essay by Steve Goreham Originally published in The Washington Times Climate scientists are obsessed with carbon dioxide. The newly released Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) claims that “radiative forcing” from human-emitted CO2 is … Continue reading

Posted in IPCC, Oceans, PDO | Tagged , , , , | 138 Comments

Unwarranted Temperature Adjustments and Al Gore’s Unwarranted Call for Intellectual Tyranny

Guest essay by Jim Steele, Director emeritus Sierra Nevada Field Campus, San Francisco State University For researchers like myself examining the effect of local microclimates on the ecology of local wildlife, the change in the global average is an absolutely … Continue reading

Posted in Al Gore, Climate data, PDO, UHI, Weather_stations | Tagged , , | 184 Comments

Syun Akasofu’s work provokes journal resignation

Editorial board member pissed off over a paper on “the pause” Story submitted by WUWT reader Duane Oldsen WUWT readers may remember Dr. Syun Akasofu as the source of a graph tracking the Pacific Multidecadal Oscillation with sine wave shifts … Continue reading

Posted in Climate ugliness | Tagged , , , , , , , | 300 Comments

The ‘Diffenbaugh Delusion’ – refuted with a single graph of temperature

From Stanford University,  a claim easily refuted with a single graph of Tmax. See below. Global warming has increased risk of record heat, say Stanford scientists Drought shriveled crops in the Midwest, massive wildfires raged in the West and East … Continue reading

Posted in Alarmism, records, Temperature | Tagged , , , , , , , | 88 Comments

Heat Waves Validate the Skeptics

Essay by Jim Steele, Director emeritus, Sierra Nevada Field Campus, San Francisco State University The heat wave and near record-breaking temperatures in Death Valley provides a superb teaching moment to show why CO2 has nothing to do with heat waves … Continue reading

Posted in heat wave, records, Weather | Tagged , , , , , , | 101 Comments

How data revisionism hypes global warming

By Christopher Monckton of Brenchley I have now had the opportunity to study SteveF’s remarkable essay at Lucia’s Blackboard, to which Anthony kindly draws attention in his footnote to my earlier posting on the absence of statistically-significant global warming for … Continue reading

Posted in Climate data | Tagged , , , , , | 208 Comments

Decadal Oscillations Of The Pacific Kind

Guest Post by Willis Eschenbach The recent post here on WUWT about the Pacific Decadal Oscillation (PDO) has a lot of folks claiming that the PDO is useful for predicting the future of the climate … I don’t think so … Continue reading

Posted in PDO | Tagged , , | 273 Comments

Does the Pacific Decadal Oscillation have predictive skill for global temperature?

Reader Eric Worrall writes: I was playing with Wood For Trees, looking at the relationship between Pacific Decadal Oscillation vs global temperature (Hadcrut 4), when the following graph appeared. The interesting thing is PDO in this graph appears to have … Continue reading

Posted in Climate data, PDO | Tagged , , , , , , , | 102 Comments

Global Warming theory has failed all tests, so alarmists return to the ‘97% consensus’ hoax

 Guest essay by Joseph D’Aleo, CCM, Weatherbell Analytics National Academies of Science defines a scientific theory as “a well-substantiated explanation of the natural world that can incorporate facts, laws, inferences, and tested hypotheses.” Dr Richard Feynman, Cornell Physicist in a … Continue reading

Posted in 97% consensus, Global warming | Tagged , , , , , , , | 145 Comments

HadCRUt4: revision or revisionism?

Guest essay by Christopher Monckton of Brenchley As Bob Tisdale has recently pointed out, the monthly temperature anomaly series published by the Hadley Centre and the Climatic Research Unit at the University of East Anglia has just been extensively revised. … Continue reading

Posted in Climate data | Tagged , , , , , , , | 45 Comments

On Hartmann and Wendler 2005 “The Significance of the 1976 Pacific Climate Shift in the Climatology of Alaska.”

Note: this is a companion article for the story: The Guardian’s Suzanne Goldenberg takes a fossil fueled trip to a remote Alaskan village to tell us recent global warming caused it to sink – but that’s not the cause   … Continue reading

Posted in Arctic, PDO, Sea Surface Temperature | Tagged , , , , , , , | 16 Comments

The Shifts Hypothesis – an alternative view of global climate change

Guest post by Pavel Belolipetsky The IPCC, Bob Tisdale and others have presented hypotheses to explain 20th century warming. This article presents another. My co-workers and I call it the “Shifts” hypothesis. And we consider it to have advantages over … Continue reading

Posted in PDO | Tagged , , | 148 Comments

Study: natural variation still rules monsoons

From the University of Hawaii ‑ SOEST Natural climate swings contribute more to increased monsoon rainfall than global warming Natural swings in the climate have significantly intensified Northern Hemisphere monsoon rainfall, showing that these swings must be taken into account … Continue reading

Posted in ENSO, Oceans | Tagged , , , , | 20 Comments

Coralline Algae and the Case for Natural Climate Change

Guest post by Jim Steele Director Sierra Nevada Field Campus, emeritus, San Francisco State University There was a very revealing 2012 paper demonstrating the power and interconnections of natural ocean oscillations, “Marine proxy evidence linking decadal North Pacific and Atlantic … Continue reading

Posted in PDO | Tagged , , , , , , , | 64 Comments

Why El Niño and not the AMO?

Guest Post by Willis Eschenbach On another thread, a poster got me thinking about the common practice of using the El Nino 3.4 Index to remove some of the variability from the historical global average surface temperature record. The theory, … Continue reading

Posted in AMO, ENSO | Tagged , , , , , , , | 154 Comments

Cooling in the near future?

Global Cooling – Climate and Weather Forecasting. Guest post by Dr. Norman Page Introduction. Over the last 10 years or so as new data have accumulated the general trend and likely future course of  climate change has become reasonably clear. The earth … Continue reading

Posted in Forecasting, PDO | Tagged , , , | 177 Comments

Muscheler retracts? Offers a NEW excuse for why solar activity can’t be responsible for post-70′s warming

Guest post by Alec Rawls Technically Dr. Muscheler is asking me to retract the title of my post, “Raimund Muscheler says that a steady high level of forcing can’t cause warming“: I am sure that you are aware of the fact … Continue reading

Posted in PDO, Solar | Tagged , , , , , | 170 Comments

Linking the ENSO and PDO induced rainfall of the Pacific Northwest to proxy data in tree rings and lake sediments

From Penn State , another Mann paper with proxy sets, and a divergence problem. At least they are talking about the MWP, or as they call it, the Medieval Climate Anomaly which had been erased in previous papers Mann had … Continue reading

Posted in Climate data, Paleoclimatology, PDO | Tagged , , , , , , , , | 147 Comments

Tisdale on the Curious Northern Hemisphere Sea Surface Temperature Anomaly Patterns

Guest post by Bob Tisdale This post will serve as the Preliminary Sea Surface Temperature Anomaly Update for June 2012, since we’ll be using preliminary June 2012 data in it. Last week ended on June 30th, so the preliminary data … Continue reading

Posted in ENSO, PDO | Tagged , , , , , , , | 62 Comments

Weekly Climate and Energy News Roundup

Brought to You by SEPP (www.SEPP.org) The Science and Environmental Policy Project ################################################### Quote of the Week: This is the way the world ends This is the way the world ends This is the way the world ends Not with … Continue reading

Posted in Climate News Roundup | Tagged , , , , , , , | 7 Comments

Bastardi’s reply to Tom Yulsman’s article on cherry picking

[Note: I don't agree with everything Joe has said here 100%, but I provide his comment in full edited for punctuation and format and turning image links into images to further the discussion. - Anthony] Guest post by Joe Bastardi … Continue reading

Posted in heat wave, Opinion | Tagged , , , , , , , | 140 Comments

German skeptics Lüning and Vahrenholt respond to criticism

Foreword: Dr Sebastian Lüning and Prof. Fritz Vahrenholt, authors of a new controversial skeptic book now hitting German bookstores, have asked me to post their response to comments made by climate scientist Georg Feulner of the Potsdam Institute for Climate … Continue reading

Posted in Cosmic rays, Opinion | Tagged , , , , , , , , , , | 201 Comments

Sense and Sensitivity II – the sequel

By Christopher Monckton of Brenchley Joel Shore, who has been questioning my climate-sensitivity calculations, just as a good skeptic should, has kindly provided at my request a reference to a paper by Dr. Andrew Lacis and others at the Goddard … Continue reading

Posted in Climate sensitivity, Modeling | Tagged , , , , , , , | 206 Comments

The November AMO index goes negative, first time since 1996

Joe D’Aleo reports via email that the Atlantic Multidecadal Oscillation (AMO) Index has gone negative for this past month, see the graph below: Source:http://www.esrl.noaa.gov/psd/data/correlation/amon.us.data This is the first time the November value has been negative since about 1996. It appears … Continue reading

Posted in AMO | Tagged , , , , , , , | 157 Comments

Why is 20 years statistically significant when 10 years is not?

Guest post by James Padgett Many of you are aware that the concept of continental drift, proposed by Alfred Wegener, was widely ridiculed by his contemporaries. This reaction was in spite of the very clear visual evidence that the continents … Continue reading

Posted in Climate data | Tagged , , | 200 Comments

Yet Even More Discussions About The Pacific Decadal Oscillation (PDO)

Guest post by Bob Tisdale INTRODUCTION I’ve written numerous posts that describe the Pacific Decadal Oscillation (PDO), what the PDO represents, and, just as important, what it does not represent. For those new to the PDO and for those needing … Continue reading

Posted in PDO | Tagged , | 100 Comments

On The AMO+PDO Dataset

Bob Tisdale suggests that the way some folks have combined the PDO and AMO datasets t produce a new curve is wrong, and here is his supporting analysis. – Anthony Guest post by Bob Tisdale Including A Discussion Of Its … Continue reading

Posted in Climate data, Sea Surface Temperature | Tagged , | 58 Comments

According to the best-sited stations, the diurnal temperature range in the lower 48 states has no century-scale trend.

It seems that a number of folks have missed one of the more important conclusions from our first paper on the surfacestations project. Co-author Dr. John Nielsen-Gammon has some things to say about it the finding that is the title. … Continue reading

Posted in Climate data, Weather_stations | Tagged , | 67 Comments

Nenana 2011 Ice Classic result

In case you missed it, the official result for 2011 is in: The Tanana River officially broke up on May 4, 2011 at 4:24 PM and here’s the clock Here’s the context of the date in comparison with all of … Continue reading

Posted in Oceans, PDO | Tagged , , , | 28 Comments

Stockwell asks: Is the Atmosphere Still Warming?

Guest post by Dr. David Stockwell I suspect that the only really convincing evidence against global warming is a sustained period of no global warming or cooling — climate sensitivity and feedbacks are too esoteric. I have followed the recent … Continue reading

Posted in ENSO, PDO | Tagged , , | 98 Comments

Stratospheric water vapor may have contributed about a third of the warming 1980-2000 but now is in decline

Don’t Ignore Nature From the Global Warming Policy Foundation by Dr. David Whitehouse How many times have you seen, read or heard some climate ‘expert’ or other say that mankind’s greenhouse gas emissions are largely responsible for the unprecedented warming … Continue reading

Posted in Stratospheric water vapor | Tagged , , , | 29 Comments