Author Archives: Bob Tisdale

About Bob Tisdale

Research interest: the long-term aftereffects of El Niño and La Nina events on global sea surface temperature and ocean heat content. Author of the ebook Who Turned on the Heat? and regular contributor at WattsUpWithThat.

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

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 | 2 Comments

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

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 | 5 Comments

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

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

Have The Poorest Countries Been Hit Hardest By Climate Change/Global Warming?

One of the constantly repeated, sympathy-seeking (and basis for wealth distribution) messages by politicians, by alarmists, by the mainstream media, and by brainwashed good-intentioned people, is that the world’s poorest countries have been hit hardest by human-induced global warming/climate change. … Continue reading

Posted in Alarmism, CAGW Proponent Arguments | 2 Comments

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

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 | 12 Comments

GISS Makes a Useful Reference Disappear from their Land-Ocean Temperature Index Data Page

The bottom of the data page for the GISS Land-Ocean Temperature Index used to (past tense) include a useful reference. But that reference was deleted in January 2016 and has been gone ever since, as far as I can tell. 

Posted in GISS | 3 Comments

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

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 | 5 Comments

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

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 | 9 Comments

Alarmists Will NOT Like This Part of the Recently Published U.S. Climate Science Special Report

Chapter 6 – Temperature Changes in the United States of the U.S. Global Change Research Program’s recently published Climate Science Special Report (2017) clearly shows and discusses, under the heading of “6.1.2 Temperature Extremes”, how temperature extremes for the contiguous … Continue reading

Posted in Uncategorized | 3 Comments

October 2018 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

As you’ll soon see, there was an eye-catching uptick (+0.25 deg C) in the GISS global Land-Ocean Temperature Index (LOTI) data from September to October 2018. We’ll have to wait for next month’s update to see if it also appears … Continue reading

Posted in TLT and LOST Updates, Uncategorized | 3 Comments