Tag Archives: Northern Hemisphere

Shakun The Last, I Hope

Guest Post by Willis Eschenbach In three previous posts here, here, and here, I discussed problems with the paper by Shakun et al., “Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation” (PDF,hereinafter S2012) Commenters said, and … Continue reading

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Posted in Paleoclimatology, Proxies | Tagged , , , , , , , , | 84 Comments

Does CO2 correlate with temperature history? – A look at multiple timescales in the context of the Shakun et al. paper

Guest post by Michael Pacnik Especially in the context of recent discussion of the Shakun et al. paper, a look at other sources for temperature history versus CO2 can be helpful, examining timescales ranging from the past century to the … Continue reading

Posted in Carbon dioxide, Paleoclimatology | Tagged , , , , , , , | 144 Comments

March 2012 Sea Surface Temperature (SST) Anomaly Update – A New Look

Guest post by Bob Tisdale THE ADDITION OF CMIP3 (IPCC AR4) HINDCASTS/PROJECTIONS TO GRAPHS I’ve added a new feature to the graphs of the monthly sea surface temperature updates on a trial basis, and it is the multi-model mean of … Continue reading

Posted in Sea Surface Temperature | Tagged , , , , , , , | 49 Comments

Spencer shows compelling evidence of UHI in CRUTem3 data

McKitrick & Michaels Were Right: More Evidence of Spurious Warming in the IPCC Surface Temperature Dataset Guest post by Roy W. Spencer, Ph. D. The supposed gold standard in surface temperature data is that produced by Univ. of East Anglia, … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | 193 Comments

Weekly Climate and Energy News Roundup

Quote of the Week: “I am always happy to be in the minority.  Concerning the climate models, I know enough of the details to be sure that they are unreliable. They are full of fudge factors that are fitted to … Continue reading

Posted in Climate News Roundup | Tagged , , , , , , , | 34 Comments

Snow White Takes a Walk In The Park

Guest Post by Willis Eschenbach I wrote a post called I Used To Be Snow White (… but then I drifted) a week or so ago about a study titled “Impact of Declining Arctic Sea Ice on Winter Snowfall” (PDF) that … Continue reading

Posted in Arctic, Sea ice, snowfall | Tagged , , , , , , | 72 Comments

Letter to the editor: Carbon Lies

Letter to the Editor Watts Up With That? 11th March 2012 The Australian government’s plan to sell their un-saleable carbon tax has hit a snag – their pollsters have discovered that the word ”carbon” provokes anger in the electorate. This … Continue reading

Posted in carbon tax, Letters To The Editor | Tagged , , , , , , , | 113 Comments

February 2012 Sea Surface Temperature (SST) Anomaly Update

By Bob Tisdale OFF-TOPIC NEWS Due to the popularity of If the IPCC was Selling Manmade Global Warming as a Product, Would the FTC Stop their Deceptive Ads? in .pdf form, I will be publishing a Kindle edition hopefully this … Continue reading

Posted in Sea Surface Temperature | Tagged , , , , , , , | 23 Comments

The Earth has chills and fever, and spots, or something

WUWT Readers may remember in 2006 Al Gore announcing on national television one morning that: The earth has a fever… He of course was pushing his book, An Inconvenient Truth as the cure. Now, almost six years later, other symptoms … Continue reading

Posted in Al Gore, Climate data, Humor, Satire, UHI | Tagged , , , , , , , , , | 95 Comments

I used to be Snow White

Guest Post by Willis Eschenbach There’s a paper out by, inter alios, our good friend Judith Curry. The paper is “Impact of Declining Arctic Sea Ice on Winter Snowfall”, by Jiping Liu, Judith A. Curry, Huijun Wang, Mirong Song, and … Continue reading

Posted in Arctic, Sea ice, snowfall, Weather | Tagged , , , , , , | 137 Comments

Tamino’s Trick

Guest Post by Jeff Condon Tamino has his crowd all whipped up about sea ice.  He has done two posts now declaring how stupid I, Anthony Watts, and by association, all of you, are.   Sorry folks, it was a … Continue reading

Posted in Arctic, Sea ice | Tagged , , , , , , | 90 Comments

Increasing Winter Cold in Recent Years and the Arctic

By Joseph D’Aleo, CCM A new study led by the Georgia Institute of Technology attempted to support a relationship reported in recent years (Overland) between melting ice in the Arctic regions and widespread cold outbreaks in the Northern Hemisphere. “We … Continue reading

Posted in Arctic | Tagged , , , , , , , | 37 Comments

Sea ice decline posited to be driving snowier NH winters

From Georgia Tech, the science press release that gave us the best-warming-headline-evah thanks to media spin, likely started by BBC’s Richard Black. It is worth noting that this study cites data from such a short time from 2009-2011. Surely if … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | 98 Comments

Best – warming – headline – evah

I’ve been getting a lot of pressure to cover the story by warmspinner Richard Black over at the BBC about a supposed feedback between Arctic sea ice and colder, snowier, winters in the UK and the EU. For example, WUWT … Continue reading

Posted in Current News, Humor, Ridiculae, Satire | Tagged , , , , , , | 132 Comments

Quantifying the Solar Cycle 24 Temperature Decline

Guest post by David Archibald Three wise Norwegians – Jan-Erik Solheim, Kjell Stordahl and Ole Humlum – have just published a paper entitled “The long sunspot cycle 23 predicts a significant temperature decrease in cycle 24”. It is available online … Continue reading

Posted in Forecasting, Science, Solar | Tagged , , , , , , , | 210 Comments

New paper speculates on volcanoes during the Little Ice Age

From NCAR/UCAR, they’re still trying to stamp out solar influence as a potential cause of the Little Ice Age. One of the things I wonder about is that during low sunspot activity, does the reduced solar-magnetic influence have any effect … Continue reading

Posted in Paleoclimatology, Vulcanism | Tagged , , , , , , , | 287 Comments

The warm-cold oscillation

From the Institute of Physics Cold winters caused by warmer summers, research suggests Scientists have offered up a convincing explanation for the harsh winters recently experienced in the Northern Hemisphere; increasing temperatures and melting ice in the Arctic regions creating … Continue reading

Posted in snowfall, Weather | Tagged , , , , , , , | 95 Comments

SST’s cooler now than in the Medieval Warming Period

From “The Hockey Schtick“, some inconvenient truth that breaks Mann’s already broken hockey stick into even smaller pieces. A new paper finds significant cooling of Atlantic Ocean over past millennium, making the MWP warmer in terms of sea surface temperature … Continue reading

Posted in Paleoclimatology | Tagged , , , , , , , | 52 Comments

UAH global temperature – holding steady in November

UAH Global Temperature Update for Nov. 2011: +0.12 deg. C By Dr. Roy Spencer The global average lower tropospheric temperature anomaly for November, 2011 remained about the same as last month, at +0.12 deg. C (click on the image for … Continue reading

Posted in Climate data | Tagged , , , , , , , | 46 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

UCAR on Blocking Highs, heat waves, and modeling limits

Dr. Roger Pielke Sr. writes: Candid Admission By UCAR – “Blocking The Way – Predicting The Atmospheric Detours That Lead To Weather Troubles” There was an interesting article in the Fall issue of the UCAR Magazine titled by Bob Henson titled Blocking The … Continue reading

Posted in heat wave, Modeling | Tagged , , , , , , , | 50 Comments

Study on paleo rainfall records clearly shows existence of MWP and LIA in Southern Hemisphere

This study from the University of Pittsburgh and SUNY-Albany set out to illustrate how rainfall patterns changes with global temperature in South America. They found the link they were looking for. At the same time, they validated the existence of … Continue reading

Posted in Paleoclimatology | Tagged , , , , | 84 Comments

There was shrinkage!

Apologies in advance… From the University of Michigan press center Shrinking snow and ice cover intensify global warming ANN ARBOR, Mich.—The decreases in Earth’s snow and ice cover over the past 30 years have exacerbated global warming more than models … Continue reading

Posted in Arctic, Humor, Satire, snowfall | Tagged , , | 108 Comments

Something topical

Guest post by Erl Happ The Northern Hemisphere is having an old fashioned winter. I thought it might be of interest to look back at history for any lessons that might be there. I think that we already have enough … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | 70 Comments

UAH Global Temperature anomaly published, 1998 still warmest year in the UAH satellite record

See also: RSS data: 2010 not the warmest year in satellite record, but a close second Dec. 2010 UAH Global Temperature Update: +0.18 deg. C By Dr. Roy Spencer, PhD. NEW 30-YEAR BASE PERIOD IMPLEMENTED! Sorry for yelling like that, but … Continue reading

Posted in Climate data | Tagged , , , | 90 Comments

Snow Season Off to a Roaring Start

By Joseph D’Aleo, CCM Last year the Northern Hemispheric snowcover was the second highest in the NOAA snow history back to the mid 1960s. It trailed only the legendary 1977/78 winter. It fell just ahead of 2007/08, pushing it to … Continue reading

Posted in Forecasting, snowfall, Weather | Tagged , , | 65 Comments