Historic variations in temperature number Four-The Hockey stick

Guest essay by Tony Brown Section 1 Summary of a previous article; A short while ago I published an article on ‘Noticeable climate change’ during the past 500 years, based…

Over 650 snow records set in USA this week – another wonky surface station located

UPDATE : The NWS responds about the station issue, see below. – Anthony Almost 60% of the contiguous USA covered in snow. While pundits spin attempts at linking snowfall in…

Japan's 'Cool Hand Luke' moment for surface temperature

At NASA’s Climate 365, there is an interesting story posted with this statement and a graph: Some say scientists can’t agree on Earth’s temperature changes Each year, four international science…

Station bias – an old problem

A number of readers have commented about the story from Sunday about NOAA’s experiment at Oak Ridge Laboratory to determine the warming effects of siting suggesting that the experiment was…

Hansen's NASA GISS – cooling the past, warming the present

The Climate of Gavin: How GISS Have Changed The Temperature Record Since 2008 Guest post by Paul Homewood I ran a post yesterday, showing how the latest version of GISSTEMP had…

AR5 Chapter 11; Hiding the Decline (Part II)

Guest post by David M. Hoffer In my first two articles on the leaked AR5 Chapter 11 (near-term projections) I looked at the caveats with which the IPCC is now…

Dr. David Whitehouse on the AR5 figure 1.4

Dr. David Whitehouse of the GWPF expounds on the “prime statistic of global warming” graph and its failure, as first reported here. The Leaked AR5 Report And Global Temperature Whatever…

The Met office responds to 'Global warming stopped 16 years ago'

This article and graphic from David Rose in the UK Daily Mail has caused quite a stir as we covered it here over the weekend.  The Met Office has responded…

UAH global temperature – up .06C – not much change

UAH Global Temperature Update for August, 2012: +0.34 deg. C By Dr. Roy Spencer The global average lower tropospheric temperature anomaly for August (+0.34 °C) was up from July 2012…

Lies, Damn Lies, and Anoma-Lies

Anomalies are unsuitable measure of global temperature trends Guest post by David M. Hoffer An anomaly is simply a value that is arrived at by comparing the current measurement to…

Climate FAIL: GISS is presenting 2012 US temperature as 'off the chart', while preventing older data from being archived

UPDATE: 8/22/12 9AM The problem has been solved, GISS responded to my complaint -Anthony Like the erroneous graph at California Governor Jerry Brown’s climate denier slam site,  here’s another one…

July was also the 329th consecutive month of positive upwards adjustment to the U.S. temperature record by NOAA/NCDC

I’ve noticed there’s a lot of frenetic tweeting and re-tweeting of this “sound bite” sized statement from this Climate Central piece by Andrew Freedman. July was the fourth-warmest such month…

Dear NOAA and Seth, which 1930's were you comparing to when you say July 2012 is the record warmest?

The press release is out, and the usual serial bloviators are rushing to trumpet the news. July 2012 was the hottest ever on record! “Yikes! We’re gonna roast! Global Warming!”…

Has the CRUTEM4 Data been fiddled with?

Guest post by Ed Thurstan Abstract It is apparent from the data that CRUTEM4 temperatures adjustments have, in part, been made with reference only to the earlier CRUTEM3 data, rather…

Tisdale on Polar Amplification

Polar Amplification: Observations versus IPCC Climate Models Guest post by Bob Tisdale We’ve illustrated and discussed polar amplification in a few posts in the past. See here and here. Wikipedia has…

Declining global average cloud height: “A significant measure of negative feedback to global warming”

Guest post by Dr. Pat Michaels – reposted (with permission) from World Climate Report A new paper just published in Geophysical Research Letters by Roger Davies and Mathew Molloy of…

How reliable are global temperature "anomalies" ?

Guest post by Clive Best Perhaps like me you have  wondered why “global warming” is always measured using temperature “anomalies” rather than by directly measuring the absolute temperatures ? Why…

Tisdale on Foster and Rahmstorf – take 2

Bob has asked me to carry this post, and I’m happy to do so. For those who want to criticize without contributing anything but criticism, I offer this insight: The…

A controversial look at Blackbody radiation and Earth minus GHG's

Guest Post by Reed Coray On Dec. 6, 2011 12:12 am Lord Monckton posted a comment on a thread entitled Monckton on sensitivity training at Durban that appeared on this…

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…

An Initial Look At The Hindcasts Of The NCAR CCSM4 Coupled Climate Model

Guest post by Bob Tisdale OVERVIEW This post compares the instrument observations of three global temperature anomaly datasets (NINO3, Global, and North Atlantic “Plus”) to the hindcasts of the NCAR…

Real Climate pans BEST and Muller

In a shocking development that may represent a singularity, I find myself in agreement* with parts of an opinion piece posted on Real Climate today called Berkeley Earthquake Called Off.…

The Berkeley Earth Surface Temperature project puts PR before peer review

UPDATE: see this new story BEST: What I agree with and what I disagree with – plus a call for additional transparency to prevent “pal” review ======================================================= Readers may recall this…

Analysing the complete hadCRUT yields some surprising results

From The Reference Frame, 30 July 2011 via the GWPF HadCRUT3: 30% Of Stations Recorded A Cooling Trend In Their Whole History The warming recorded by the HadCRUT3 data is…