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.

For Those Watching the Sea Surface Temperature Anomalies of the Equatorial Pacific and the Decay of the El Niño

Many readers are keeping an eye on the sea surface temperature anomalies of the eastern equatorial Pacific. The latest sea surface temperature anomaly map from the CMC Environment Canada (Figure 1) shows cooler than normal sea surface temperature anomalies along … Continue reading

Posted in 2015-16 El Nino Series, Uncategorized | 10 Comments

UPDATED: Do the Adjustments to Land Surface Temperature Data Increase the Reported Global Warming Rate?

This is an update of the post published a week ago here (WattsUpWithThat cross post is here). That earlier post included “raw” unadjusted data based on an outdated version of the NOAA GHCN dataset. This updated post includes annual land … Continue reading

Posted in LSAT | Leave a comment

April 2016 ENSO Update – La Niña Alerts Issued for Later This Year and NINO1+2 SSTa Are Near Zero Deg C

This post provides an update of many of the ENSO-related variables we presented as part of the 2014-15 El Niño Series.  For the posts about the 2015/16 El Niño, we’ve used the evolution years of different El Niños as references … Continue reading

Posted in 2015-16 El Nino Series, ENSO Update | 9 Comments

Do the Adjustments to Land Surface Air Temperature Data Increase the Global Warming Rate?

Quick Answer:  Over the long term, the answer is yes, and the differences between datasets are striking. Over shorter terms, the answer depends on the data supplier. INTRODUCTION This is the second in a 2-part series of blog posts.  We examined … Continue reading

Posted in LSAT | 3 Comments

March 2016 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post provides an update of the values for the three primary suppliers of global land+ocean surface temperature reconstructions—GISS through March 2016 and HADCRUT4 and NCEI (formerly NCDC) through February 2016—and of the two suppliers of satellite-based lower troposphere temperature … Continue reading

Posted in Global Temperature Update, LOST Update, Lower Troposphere Temperature | 4 Comments

Are You New To the Global Warming Debate? James Hansen Admits a Couple of Things about Global Temperatures and Sea Levels You Should Know

Yale University’s Katherine Bagley interviewed James Hansen, former director of NASA’s Goddard Institute for Space Studies, in the post For James Hansen, the Science Demands Activism on Climate at YaleEnvironment360.  That interview was replayed in the article Climate scientist James Hansen … Continue reading

Posted in Alarmism | 7 Comments

March 2016 Sea Surface Temperature (SST) Anomaly Update

INITIAL NOTE I’m thinking of changing the format of the graphs.  Instead of presenting the centered 13-month running mean along with the monthly data, I’m thinking of replacing the smoothed curve with a horizontal line that represents the Current Value. … Continue reading

Posted in SST Update | 9 Comments

Headlines: What Climate Alarmists Write Versus What the Rest of Us See

I always enjoy the headlines of climate alarmist news stories. This one caught my eye this week.  Of course the headline included the infamous weasel words:  COULD BE. At BusinessInsider.com:  4.2 million Americans could be displaced by rising sea levels … Continue reading

Posted in Alarmism | 1 Comment

Do the Adjustments to Sea Surface Temperature Data Lower the Global Warming Rate?

Quick answer:  Over the long term, the answer is yes, but for shorter terms it depends on the sea surface temperature dataset and time period.  And in recent years, as most people understand, the adjustments increase global warming trends.

Posted in SST Dataset Info | 9 Comments

I Don’t Believe This Blogger is Pleased with Me or Climate Skeptics in General

I found the following comment this morning awaiting moderation. It was left today for a year-old post Richard Tol’s Excellent Summary of the Flaws in Cook et al. (2013) – The Infamous 97% Consensus Paper.  I approved it and its duplicate.  … Continue reading

Posted in Uncategorized | 17 Comments