Category Archives: Climate data

Still chasing consensus – on building a climate consensus model

Statistics research could build consensus around climate predictions Philadelphia, PA—Vast amounts of data related to climate change are being compiled by research groups all over the world. Data from these many and varied sources results in different climate projections; hence, … Continue reading

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Posted in 97% consensus, Climate data, Modeling | 125 Comments

95% of Climate Models Agree: The Observations Must be Wrong

Note: This is a repost from Dr. Roy Spencer’s blog entry last Friday. I’ve done so because it needs the wide distribution that WUWT can offer. The one graph he has produced (see below) says it all. I suggest readers … Continue reading

Posted in Climate data, Hiatus in Global Warming, Modeling | 174 Comments

Report from the Office of the Inspector General: Global Climate Change Program Data May Be Unreliable

From the “we’ve told you so time and again” department comes this agreement with my assessment of the state of the climate programs as conducted by the US Government. Readers may recall this report from the GAO that was spurred … Continue reading

Posted in Climate data, Government idiocy | 60 Comments

Friday Funny – two guys with a ruler blow up the White House global warming video claims

Remember White House science advisor John Holdren’s wackadoodle video about the Polar Vortex? The opening line of the video spoken by Dr. Holdren says ” If you’ve been hearing that extreme cold spells, like the one we’re having in the … Continue reading

Posted in Climate data, Humor, Satire | Tagged , , | 240 Comments

Proper Cherry Picking

Guest essay by Johannes Herbst There is a much discussed graph in the blogosphere from ‘Tamino’ (Grant Foster), which aims to prove that there is no delay or pause or decline in global warming. He states: Twelve of sixteen were … Continue reading

Posted in Climate data | 422 Comments

CRU produces something useful for a change

World temperature records available via Google Earth Climate researchers at the University of East Anglia have made the world’s temperature records available via Google Earth.

Posted in Climate data, GHCN, Weather_stations | 134 Comments

U.S. Dec/Jan Temperatures 3rd Coldest in 30 Years

by Roy W. Spencer, Ph. D. Yes, Virginia, it really has been a cold winter. The winter months of December 2013 and January 2014 averaged over the contiguous 48 United States were the 3rd coldest Dec/Jan in the last 30 … Continue reading

Posted in Climate data | 95 Comments

Is the Climate SELL Signal Imminent?

What a simple statistical investment tool can tell us about the climate Guest essay by Eric Worrall One of the simplest statistical tools used by investors is a moving average plot. If you plot the average share price of a … Continue reading

Posted in Climate data, Climate News | Tagged , , , , | 114 Comments

Important study on temperature adjustments: ‘homogenization…can lead to a significant overestimate of rising trends of surface air temperature.’

From the “we told you so” department comes this paper out of China that quantifies many of the very problems with the US and global surface temperature record we have been discussing for years: the adjustments add more warming than … Continue reading

Posted in Adjustments/Corrections, Climate data, GHCN, Weather_stations | 195 Comments

Why Aren’t Global Surface Temperature Data Produced in Absolute Form?

The title question often appears during discussions of global surface temperatures. That is, GISS, Hadley Centre and NCDC only present their global land+ocean surface temperatures products as anomalies. The questions is: why don’t they produce the global surface temperature products … Continue reading

Posted in Climate data, NASA GISS, NCDC, UKMO HADCRUT4 | 132 Comments

NASA revises Earth’s Radiation Budget, diminishing some of Trenberth’s claims in the process

From the “settled science” department comes this new revision of Earth’s entire radiation budget. Many WUWT readers can recall seeing this radiation budget graphic from Kenneth Trenberth in 2009: Source: Trenberth et al. 2009 http://echorock.cgd.ucar.edu/cas/Staff/Fasullo/my_pubs/Trenberth2009etalBAMS.pdf That figure in a slightly … Continue reading

Posted in Climate data, Climate News, Climate sensitivity, Earth, IPCC | 211 Comments

Upwelling Solar, Upwelling Longwave

Guest Post by Willis Eschenbach The CERES dataset contains three main parts—downwelling solar radiation, upwelling solar radiation, and upwelling longwave radiation. With the exception of leap-year variations, the solar dataset does not change from year to year over a few … Continue reading

Posted in Climate data, Radiative Imbalance, Solar | Tagged , , | 348 Comments

On The Stability and Symmetry Of The Climate System

Guest Post by Willis Eschenbach The CERES data has its problems, because the three datasets (incoming solar, outgoing longwave, and reflected shortwave) don’t add up to anything near zero. So the keepers of the keys adjusted them to an artificial … Continue reading

Posted in Climate data, Radiative Imbalance, Solar | Tagged , , , , | 306 Comments

The Original Temperatures Project

Guest essay by Frank Lansner Presentation of the Original Temperatures project. Contents: 1. Introduction 2. Methods 3. Adjustments of temperature data 3.1. Adjustments: HISTALP – by the Austrian ZAMG 3.2. Adjustments: ECA&D – by the Dutch KNMI 3.3. Adjustments: The BEST project 3.3.1 BEST / Austria … Continue reading

Posted in Climate data, Temperature | Tagged , , , , , | 196 Comments

Global Temperature Report: December 2013

2013 was 4th warmest year in the satellite era From University of Alabama, Hunstville. Global climate trend since Nov. 16, 1978: +0.14 C per decade December temperatures (preliminary) Global composite temp.: +0.27 C (about 0.49 degrees Fahrenheit) above 30-year average … Continue reading

Posted in Climate data | Tagged , | 417 Comments

First time in 20 years – more daily record lows than daily highs that were either tied or set in 2013

2013 was a cool year in many ways. Most interestingly, the last year this split between highs and lows happened in the USA, in 1993, we had the eruption from Mt. Pinatubo the prior year which ejected so much aerosol … Continue reading

Posted in Aerosols, Climate data, records, Temperature, Volcanoes, Weather | Tagged , , | 52 Comments

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 global land and ocean surfaces for November 2013 was record … Continue reading

Posted in Climate data, Temperature | Tagged , , , , | 135 Comments

WUWT Video – Zeke Hausfather explains the new BEST surface data set at AGU 2013

I mentioned the poster earlier here. Now I have the video interview and the poster in high detail. See below.

Posted in Climate data, WUWT-TV | Tagged , , , | 122 Comments

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 anomalies showed no global warming for exactly 204 months – … Continue reading

Posted in Climate data | Tagged , | 336 Comments

UAH Global temperature, down slightly, “the pause” continues

UAH v5.6 Global Temperature Update for Nov. 2013: +0.19 deg. C by Roy W. Spencer, Ph. D. The Version 5.6 global average lower tropospheric temperature (LT) anomaly for November, 2013 is +0.19 deg. C, down from +0.29 deg. C in … Continue reading

Posted in Climate data | Tagged , , , , , , | 98 Comments

Cowtan and Way’s ‘pausebuster’, still flat compared to models

Steve McIntyre writes: In the context of IPCC SOD FIgure 1.5 (or similar comparison of models and observations), CW13 is slightly warmer than HadCRUT4 but the difference is small relative to the discrepancy between models and observations; the CW13 variation … Continue reading

Posted in Climate data, Modeling, Arctic | Tagged , , , , , | 95 Comments

A Big Picture Look At “Earth’s Temperature” – Santer 17 Update

Image Credits: NASA,  BP.Blogspot.com, Wikimedia.org By WUWT regular “Just The Facts” NOAA’s State of the Climate In 2008 report found that: The simulations rule out (at the 95% level) zero trends for intervals of 15 yr or more, suggesting that … Continue reading

Posted in Climate data, measurement, Temperature | Tagged , , , | 175 Comments

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, 2013: +0.29 deg. C By Dr. Roy Spencer We finally … Continue reading

Posted in Climate data | Tagged | 34 Comments

Virginia is for warmers? Data says no.

A new tool for climate data visualization is showcased David Walton writes to tell us about a satirical piece by Mark Steyn – titled Virginia is for Warmers I was blessedly out of the country on Tuesday, so I’m belatedly catching up … Continue reading

Posted in Climate data | Tagged , , , , , , | 53 Comments

UAH global temperature for October, down significantly

Down from 0.37 in September. Global Temperature Report: October 2013

Posted in Climate data | Tagged , | 47 Comments

September 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

Sorry this is so late. The NCDC and GISS updates were delayed by the government shutdown. Because it is so late, it includes the September 2013 HADCRUT4 data from the UKMO. It’s so late I’ve already published the Preliminary October … Continue reading

Posted in Climate data, Hiatus in Global Warming, NASA GISS, NCDC, Temperature, UKMO HADCRUT4 | 26 Comments

How long before we reach the catastrophic 2°C warming?

Guest essay by Neil Catto The other day I conducted a presentation using the UK CET, like I have on several occasions. Along with explaining it as the longest recognised instrumental record of historical temperature anywhere on Earth, it is … Continue reading

Posted in Climate data | Tagged , , | 128 Comments

Tamino Resorts to Childish Attempts at Humor But Offers Nothing of Value

INITIAL NOTE: This post includes a link to and title of a recent post by Tamino, in which he attempted sophomoric humor in an effort to amuse his audience. While I realize responding to it at the same base level … Continue reading

Posted in Climate data, Modeling | 100 Comments

Epic Failure of the Canadian Climate Model

Guest Essay by: Ken Gregory The Canadian Centre for Climate Modeling and Analysis located at the University of Victoria in British Columbia submitted five runs of its climate model CanESM2 for use in the fifth assessment report of the International … Continue reading

Posted in Climate data, Modeling | Tagged , | 143 Comments

Claim: ‘climate change’ caused more deaths in Stockholm – but it may be due to flawed methodology

This is one of those publications where I look at what was done in the paper and just shake my head in disbelief. For starters, according to the data listed in the SI, the supposed extra deaths due to climate … Continue reading

Posted in Climate data, GHCN, Weather_stations | Tagged , , , , | 189 Comments

Getting very close to meeting Santer’s 17 year warming test

RSS: no global warming for 16 years 11 months By Christopher Monckton of Brenchley The RSS monthly satellite global mean surface temperature anomaly data, delayed by the US Government shutdown, are now available. The data show no global warming at … Continue reading

Posted in Climate data | Tagged , | 191 Comments

The Button Collector or When does trend predict future values?

Guest essay By Kip Hansen INTRO: Statistical trends never determine future values in a data set. Trends do not and cannot predict future values. If these two statements make you yawn and say “Why would anyone even have to say … Continue reading

Posted in Climate data, Forecasting, Modeling | Tagged , , | 222 Comments

UAH Global Temperature Report: September 2013 – up

While NASA GISS is offline, there’s no shutdown at UAH. From Dr. Roy Spencer: The Version 5.6 global average lower tropospheric temperature (LT) anomaly for September, 2013 is +0.37 deg. C (click for larger version): The global, hemispheric, and tropical … Continue reading

Posted in Climate data | Tagged , , , | 48 Comments

If climate data were a stock, now would be the time to SELL

Using a financial markets’ trend-analyses tool to assess temporal trend-changes in global surface temperature anomalies (GSTA). Guest essay by David Dohbro Heated debates (pun intended) are currently on going regarding if the Earth’s surface temperatures continue to rise, have remained … Continue reading

Posted in Climate data | Tagged , , , , | 82 Comments

To the IPCC: Forget about “30 years”

IPCC has never waited for 30-year trends, and they were right. Guest essay by Barry Brill Under pressure at a media conference following release of its Summary for Policymakers, AR5 WG1 Co-Chair Thomas Stocker is reported to have said that … Continue reading

Posted in Climate data, IPCC, IPCC AR5 Report | Tagged , | 119 Comments