Category Archives: Global Warming in Perspective

“…it is the change in temperature compared to what we’ve been used to that matters.” – Part 3

Posted on December 24, 2018 by Bob Tisdale

In this post, we’re going to present monthly mean TMIN and TMAX Near-Land Surface Air Temperatures (not in anomaly form) for a group of ten (10) Countries in an effort to add a little perspective to global warming. The list … Continue reading →

Posted in Global Warming in Perspective | 5 Comments

“…it is the change in temperature compared to what we’ve been used to that matters.” – Part 2

Posted on December 15, 2018 by Bob Tisdale

In this post, we’re going to present graphs that show the annual lowest TMIN and highest TMAX Near-Land Surface Air Temperatures (not in anomaly form) for ten (10) Countries in an effort to add some perspective to global warming.  The … Continue reading →

Posted in Global Warming in Perspective | 4 Comments

Examples of How the Use of Temperature ANOMALY Data Instead of Temperature Data Can Result in WRONG Answers

Posted on December 13, 2018 by Bob Tisdale

This post comes a couple of weeks after the post EXAMPLES OF HOW AND WHY THE USE OF A “CLIMATE MODEL MEAN” AND THE USE OF ANOMALIES CAN BE MISLEADING (The WattsUpWithThat cross post is here.)

Posted in Global Warming in Perspective | 14 Comments

“…it is the change in temperature compared to what we’ve been used to that matters.” – Part 1

Posted on December 8, 2018 by Bob Tisdale

In this post, we’re going to present monthly TMIN and TMAX Near-Land Surface Air Temperature data for the Northern and Southern Hemispheres (not in anomaly form) in an effort to add a little perspective to global warming. And at the … Continue reading →

Posted in Global Warming in Perspective | 8 Comments

WMO Reasoning behind Two Sets of “Normals” a.k.a. Two Periods of Base Years for Anomalies

Posted on December 3, 2018 by Bob Tisdale

Most of us are familiar with the World Meteorological Organization (WMO)-recommended 30-year period for “normals”, which are also used as base years against which anomalies are calculated. Most, but not all, climate-related data are referenced to 30-year periods. Presently the … Continue reading →

Posted in Global Warming in Perspective | 14 Comments

EXAMPLES OF HOW AND WHY THE USE OF A “CLIMATE MODEL MEAN” AND THE USE OF ANOMALIES CAN BE MISLEADING

Posted on November 29, 2018 by Bob Tisdale

THE POST HAS BEEN UPDATED. SEE THE UPDATE AT THE END OF THE POST: Alternate Title: An Average of Climate Models, Which Individually Give Wrong Answers, Cannot, By Averaging Them, Give the Right Answer, So A Model Mean Can Be … Continue reading →

Posted in Global Warming in Perspective, Model-Data LOST | 6 Comments

What Was Earth’s Preindustrial Global Mean Surface Temperature, In Absolute Terms Not Anomalies, Supposed to Be?

Posted on November 27, 2018 by Bob Tisdale

And What Have the Average Temperatures of Earth’s Surfaces Been Recently in Absolute Terms, Not Anomalies? The answers may surprise you. THIS POST HAS BEEN UPDATED. The update is near the end of the post.

Posted in Global Warming in Perspective, Model-Data LOST | 12 Comments

Do Doomsters Know How Much Global Surface Temperatures Cycle Annually?

Posted on November 5, 2018 by Bob Tisdale

Alternate Title: The Annual Cycle in Global Land+Ocean Surface Temperature IS Far Greater Than 1.5 Deg C, AND Much-Much-MUCH Greater Than 1.5 Deg C Annually for Global Land Air Surface Temperatures

Posted in Global Warming in Perspective, Uncategorized | 23 Comments