Rethinking Climate, Climate Change, and Their Relationship with Water

New open access paper by Prof. Demetris Koutsoyiannis Abstract We revisit the notion of climate, along with its historical evolution, tracing the origin of the modern concerns about climate. The…

The Laws of Averages: Part 3, The Average Average

  Guest Essay by Kip Hansen   This essay is the third and last in a series of essays about Averages — their use and misuse.  My interest is in…

Peer Review; Last Refuge of the (Uninformed) Troll

Current peer review science, by attempting to explain away model failure, in fact confirms that the science is wrong Guest essay by David M. Hoffer It has become a favorite…

New paper: climate models short on 'physics required for realistic simulation of the Earth system'

I’m pleased to have had a chance to to review this new paper just published in the Journal of Climate: An Evaluation of Decadal Probability Forecasts from State-of-the-Art Climate Models…

A hilarious view of Climategate I've never read before

Scientific understanding and faith simultaneously on display:  ‘For climatologists, the search for an irrefutable “sign” of anthropogenic warming has assumed an almost Biblical intensity.’ – Fred Pearce, New Scientist, October…

Ooops – Met Office decadal model forecast for 2004-2014 falls flat

‘The Pause’ claims another victim. Source: http://www.woodfortrees.org/plot/hadcrut4gl/from:2004/plot/hadcrut4gl/from:2004/trend:2004 Paul Matthews writes: The skillful predictions of climate science Smith et al (2007): 0.3°C in 10 years In 2007, a team of climate scientists from…

September doldrums – solar slump continues

While many science related government agencies are shut down (NASA GISS is deemed ‘non-essential’ for example) some remain open due to statements like this: Due to the Federal Government shutdown,…

IPCC Climate: A Product of Lies, Damn Lies and Statistics Built On Inadequate Data

Guest essay by Dr. Tim Ball “If you torture the data enough, nature will always confess” – Ronald Coase. Facts are stubborn things, but statistics are more pliable. – Anonymous.…

Uh, oh. It's models all the way down

Dr. Judith Curry lets an announcement slip in comments.

National Academy of Sciences: climate models still 'decades away' from being useful

From the National Academy of Sciences report A National Strategy for Advancing Climate Modeling: Computer models that simulate the climate are an integral part of providing climate information, in particular…

Another uncertainty for climate models – different results on different computers using the same code

New peer reviewed paper finds the same global forecast model produces different results when run on different computers Did you ever wonder how spaghetti like this is produced and why…

Two years to a 1740-type event?

Guest essay by David Archibald Wiggle-matching has been used by the best. Hubert Lamb, considered to be the most meticulous climatologist of all time, used wiggle-matching in this wind data…

Quite possibly the dumbest example of 'Tabloid Climatology' ever from Climate Central's Andrew Freedman

Andrew Freedman writes in this Tabloid Climatology™ piece at Climate Central: When Hurricane Sandy struck New York City on October 29, 2012, the dark waters of Flushing Bay poured over…

Quote of the week – a pause for cooling off

From Dr. Judith Curry: 

An analysis of night time cooling based on NCDC station record data

Guest post by Mike Crow Figure 1 Night time temperature profile of a clear sky night in NE Ohio. 8:28pm Sunset/6:16am Sunrise Climate science is all about surface temperature trends.…

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…

Curry and Lomborg in house committee today – webcast live

UPDATE: Dr. Judith Curry’s transcript of her verbal testimaony is online here: http://judithcurry.com/2013/04/25/congressional-hearing-on-policy-relevant-climate-issues-in-context/ Skeptics outnumber alarmists at House of Representatives session today Subcommittee on Environment Hearing – Policy Relevant Climate…

When Alaska Was Cold

Guest Post by Willis Eschenbach Temperatures are generally referred to some kind of long-term, often 30-year average. This is called the “climatology”, meaning the long-term average values of various climate…

Challenging the Scientific Consensus on Climate Change

Consensus does not necessarily guarantee sound science Guest post by Forrest M. Mims III Consensus is often cited in support of scientific paradigms, including anthropogenic climate change. Australian physicist Tom…

Dear readers – your help needed in fun crowdsourcing project

NOTE: This is a “sticky” top post, new posts will appear below this one. No, I’m not asking for money, only your ability to research and encapsulate an idea. I…

German “mad scientist” wants to rule the world…

Hmmm, sounds like a bad “B” movie plot. From Pierre Gosselin at No Tricks Zone: Why German Prof. Hans-Joachim Schellnhuber & Co. Will Become The Object Of Ridicule For Future…

Keeping track of NOAA's ENSO data changes

The NOAA Weekly ENSO Sea Surface Temperature Indices Webpage Has Changed Location By Bob Tisdale There has been concern expressed recently around the blogosphere that NOAA hasn’t updated their weekly El…

Climate models outperformed by random walks

First, a bit of a primer. Wikipedia describes a random walk is a mathematical formalisation of a trajectory that consists of taking successive random steps. For example, the path traced…

Gavin Schmidt talk at URI

WUWT reader Gary writes in with this: Gavin Schmidt gave a lecture at my University yesterday and I thought you might like to see it. He starts at 21 minutes…