HADcrut, definition of

Climate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.

In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.

Wikipedia - Climate Change entry

• Climategate, what is going on?
  Global warming, climate change, greenhouse effect and climategate; how 'valid' is the climate science?

• All 5 Global Temperature Measurement Systems Reject NOAA’s July 2021 “hottest month ever” Alarmist Hype
  Guest essay by Larry Hamlin In a clear discrediting of NOAA’s and the media’s recent overhyped and flawed global temperature claim that “July 2021 was the hottest month ever recorded” (with this hype promoted…
• The GWPF 2019 Temperature Prediction Competition
  Benny Peiser writes: It would be great if you would encourage your readers to participate in our 2019 Global Temperature Prediction Competition. Here the the description from The GWPF website Date: 08/02/19 Global Warming Policy Forum With GWPF readers...
• Calculating global temperature anomaly
  By Nick Stokes, There is much criticism here of the estimates of global surface temperature anomaly provided by the majors – GISS, NOAA and HADCRUT. I try to answer these specifically, but also point out that the source data is readily available,...
• July 1912 GISS Anomaly (-0.47) Was Warmer Than January 2007 GISS Anomaly (+0.94) – (Now Includes February Data)
  Image Credit: The above graphic was sourced from this article by John Kehr on his blog The Inconvenient Skeptic, and he also authored this interesting article on WUWT...
• On data losses -vs- geography in Cowtan and Way 2013: data dropout may account for most of the recent observed differences
  At Climate Audit, Roman M. has a very interesting analysis that shows the surface grid cell losses from HadCRUT4 in C&W. It hones in on the issue of why the temperature differences from 2005 are much more significant than the … Continue reading...
• 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 recent temperature trends...
• Could the Perspectives of Cowtan and Way Negate RSS’s 17 Year Pause? (Now Includes all October Data except Hadcrut)
  Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts In reference to my previous article RSS Reaches Santer’s 17 Years, and taking into account the good work already done in analyzing Cowtan and Way by Steve … Continue...
• 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...
• 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...
• RSS Flat For 200 Months (Now Includes July Data)
  Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts The graphic above shows 3 lines. The long line shows that RSS has been flat from December 1996 to July 2013, which is a period of 16 … Continue reading →