New record low set in the coldest city in the continental USA – much of the country headed for a deep freeze

As we begin 2014, it will usher in record cold temperatures. Next week looks quite cold as this forecast for Tuesday shows. Image from Dr. Ryan Maue, WeatherBell International Falls,…

Claim: November 2013 is the 'warmest ever' – but will the real November 2013 temperature please stand up?

Lots of clima-hullaballo this week in the media thanks NOAA and this announcement in NOAA’s “State of the Climate” report seen here: http://www.ncdc.noaa.gov/sotc/global/ They state: The combined average temperature over…

'Twas the nightmare before Christmas

By Joe Bastardi ‘Twas the week before Christmas, when all through the news, There were reports of record cold, so many were confused. Told global warming is why we should…

Whither went the warmer weather?

17 years, 3 months with no global warming By Christopher Monckton of Brenchley The Long Pause just got three months longer. Last month, the RSS monthly global mean lower-troposphere temperature…

Cowtan and Way – The Magician's 'Red Scarf Trick' with Linear Trend Lines

Guest Post by Kip Hansen There are a lot of good, in-depth technical discussions of Cowtan and Way 2013, Coverage bias in the HadCRUT4 temperature series and its impact on…

UAH October temperatures, part 2

Note that the original October report on WUWT from a press release issued accidentally by UAH is superseded by this report. – Anthony UAH v5.6 Global Temperature Update for October,…

An impartial look at global warming…

Guest essay by M.S.Hodgart (Visiting Reader Surrey Space Centre University of Surrey) The figure presented here is a new graph of the story of global warming – and cooling. The…

What People Will Read and See with the IPCC’s Lead-Off Illustration from the AR5 SPM

Anthony Watts published an illustration and an excerpt of the draft of the IPCC’s Summary for Policymakers due out later this month. See the WUWT post Excerpts from the Leaked…

Britain’s Warm, But Unremarkable Summer

Guest essay by Paul Homewood For those of us living in the UK, the glorious summer has been much in the news. We seem to have spent half of it…

Does your weather station get the wind? How station siting compromises temperature measurements via wind issues

Guest essay by Bob Fernley-Jones Well Melbourne (Oz) sure does, (and we are the butt of a few intercity jokes, a polite one being; we can have “four seasons all…

CO2 calculation in the global carbon cycle may be off due to a depth error

It seems that a simple assumption about where to measure CO2 in the ocean surface has drastic implications. via The Hockey Schtick New paper finds global carbon cycle datasets may…

RSS Flat For 200 Months (Now Includes July Data)

[NOTE: RSS is a satellite temperature data set much like the UAH dataset from Dr. Roy Spencer and John Christy – Anthony] Image Credit: WoodForTrees.org Guest Post By Werner Brozek,…

The Elusive Absolute Surface Air Temperature (SAT)

Here’s an interesting Q&A on issues with trying to determine the SAT of the Earth that I have not seen before. There’s a surprise at the end as to who…

More low climate sensitivity

This paper A lower and more constrained estimate of climate sensitivity using updated observations and detailed radiative forcing time series from Skeie et al is now in open peer review…

The early chill in the Arctic continues

Temperature above 80 degrees north drops below freezing early, and continues to drop. Many people have been watching the remarkable early drop in air temperature at the DMI plot here:…

When it comes to new high temperature records, 'shoot first, ask questions later'

Readers may recall my investigation over the weekend of an announcement by the Danish Meteorological Institute (DMI) about a new all-time high temperature record set in Greenland that was subsequently…

About that 'warmer temperatures increase violence' claim…real world crime data doesn't support it

Readers surely recall the wild claim yesterday made by researchers from Princeton University and the University of California-Berkeley who reported in the journal Science that even slight spikes in temperature…

NASA predicts 8 degrees of warming in the US by 2100

For the National Climate Assessment NASA has produced a model-based prediction of eight degrees Fahrenheit for the continental US by 2100 as the most likely scenario Story submitted by Ben…

Australia's average temperature

Are Australians heading for the cooker? Guest essay by Bill Johnston Elections for Australia’s National (Federal) parliament are looming and carbon tax is a battleground issue. The incumbent Labour Party…

How Good Are Met Office Predictions? (Now Includes at Least May Data)

Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts “We are now using the system to predict changes out to 2014. By the end of this…

I need help with a graph search

In the last week, I came across a graph on a climate skeptic website that showed the earth’s average temperature in F, the known variation of temperature on earth, and…

100 years ago today – Death Valley 134° record by the observer, why are there two different paper records?

Today, NOAA is celebrating the 100 year anniversary of the 134° reading at Greenland Ranch in Death Valley, including speakers, guests, and media coverage expected to begin at 11AM PDT,…

UAH global temperature, up somewhat

UAH v5.6 Global Temperature Update for June, 2013: +0.30 deg. C by Roy W. Spencer, Ph. D. After 10 days in Michigan’s U.P. for my 40th high school reunion, here’s…

Models Fail: Scandinavian Land Surface Air Temperature Anomalies

UPDATE: I’ve added a comment by Marcel Crok to the end of the post. #### The climate models being used by the IPCC for their upcoming 5th Assessment Report show…