Site: Roy Spencer

Slant: Sceptic

Active: yes


This is the website of Roy Spencer. Roy W. Spencer received his Ph.D. in meteorology at the University of Wisconsin-Madison in 1981. Before becoming a Principal Research Scientist at the University of Alabama in Huntsville in 2001, he was a Senior Scientist for Climate Studies at NASA’s Marshall Space Flight Center, where he and Dr. John Christy received NASA’s Exceptional Scientific Achievement Medal for their global temperature monitoring work with satellites. Dr. Spencer’s work with NASA continues as the U.S. Science Team leader for the Advanced Microwave Scanning Radiometer flying on NASA’s Aqua satellite. He has provided congressional testimony several times on the subject of global warming.

Recent Articles

Roy Spencer: The Sorry State of Climate Science Peer Review, and Kudos to Nic Lewis

For decades now those of us trying to publish papers which depart from the climate doom-and-gloom narrative have noticed a trend toward both biased and sloppy peer review of research submitted for publication in scientific journals. Part of the problem is the increased specialization of climate science (and other sciences in general), so that there […]

2018-11-14 15:16   Click to comment

Roy Spencer: UAH Global Temperature Update for October, 2018: +0.22 deg. C

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for October, 2018 was +0.22 deg. C, up a little from +0.14 deg. C in September: Various regional LT departures from the 30-year (1981-2010) average for the last 22 months are: YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2017 01 +0.33 +0.32 +0.34 […]

2018-11-02 14:24   Click to comment

Roy Spencer: Florida Major Hurricane Strikes: Still No Trend

Note: The first plot had Michael’s wind speed plotted incorrectly, which has been fixed. I’ve updated a plot of Florida major hurricane strikes since 1900 with Hurricane Michael, and the result is that there is still no trend in either intensity or frequency of strikes over the last 118 years: This is based upon National […]

2018-10-11 17:32   Click to comment

Roy Spencer: New Record Low Tornado Count as of October 3

NOAA’s Storm Prediction Center keeps a daily count of cumulative number of tornadoes in the U.S. each year, and recent years have had an unusually low number of tornadoes. As of October 3, the cumulative total for 2018 is 759; the previous lowest number of tornadoes for this date was 761. The SPC has records […]

2018-10-04 18:00   Click to comment

Roy Spencer: UAH Global Temperature Update for September, 2018: +0.14 deg. C

Globally, the coolest September in the last 10 years. The Version 6.0 global average lower tropospheric temperature (LT) anomaly for September, 2018 was +0.14 deg. C, down a little from +0.19 deg. C in August: This was the coolest September in the last 10 years in the global average. Some regional LT departures from the […]

2018-10-02 14:31   Click to comment

Roy Spencer: My Tucker Carlson Interview Last Night, and Calling Out Bill Nye & James Hansen

It didn’t last long, but I was interviewed in one segment on Tucker Carlson’s show of Fox News Channel last evening: Watch the latest video at foxnews.com The subject was Hurricane Florence and whether it could be blamed on President Trump (specifically) or humanity (more generally). You really can’t say much in only a couple […]

2018-09-15 15:26   Click to comment

Roy Spencer: U.S. Major Landfalling Hurricanes Down 50% Since the 1930s

While the wind, storm surge, and freshwater flooding from Category 1 Hurricane Florence will no doubt cause massive damage, we should remember that – historically speaking – major landfalling hurricanes were more frequent in past decades. Contrary to popular perception, the number of major hurricanes making landfall in the U.S. has dropped by an average […]

2018-09-14 13:03   Click to comment

Roy Spencer: The 30 Costliest U.S. Hurricanes Have Not Increased in Intensity Over Time

As part of the 2nd edition of my Kindle e-book Inevitable Disaster: Why Hurricanes Can’t Be Blamed On Global Warming (which should go live tonight), I include the following graph, based upon data in a January 2018 U.S. Government report. In the top panel we see that the average monetary damages of the 30 most […]

2018-09-12 14:57   Click to comment

Roy Spencer: My new Kindle book: Global Warming Skepticism for Busy People

I sometimes get asked for a concise and accessible summary of my skeptical views on global warming. After a year or more of thinking and writing, my new Kindle book Global Warming Skepticism for Busy People is meant to fill that need. As a bonus, I guarantee it will be easier to understand than Neil […]

2018-09-12 14:25   Click to comment

Roy Spencer: Hurricane Florence: Nature’s Business as Usual, Not Climate Change

A potential new poster child for global warming ignores the lack of trend in major hurricane landfalls in the Carolinas. Although it is still 3-4 days away, rapidly strengthening Hurricane Florence is increasing the threat of a major hurricane landfall somewhere within 120 miles or so of Wilmington, NC. If it reaches that area as […]

2018-09-10 14:20   Click to comment

Roy Spencer: East Coast Nervous About Major Hurricane Florence

We are now at the climatological peak of the Atlantic hurricane season, and Mother Nature is revving into high gear. We could have up to three hurricanes in the Atlantic in the coming days, as strong easterly waves continue to emerge from the west coast of Africa: Florence is of the most immediate concern. While […]

2018-09-07 16:35   Click to comment

Roy Spencer: UAH Global Temperature Update for August 2018: +0.19 deg. C

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for August, 2018 was +0.19 deg. C, down from the July value of +0.32 deg. C: Some regional LT departures from the 30-year (1981-2010) average for the last 20 months are: YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2017 01 +0.33 +0.32 +0.34 […]

2018-09-01 14:46   Click to comment

Roy Spencer: Green Energy Scam #167: Traffic-Driven Wind Turbines

A YouTube video making the rounds on social media (with over 27 million views!) describes a system of small wind turbines placed in the median between two lanes of traffic. The wind generated by the traffic spins the turbine blades and generates (a very small amount of) electricity: The question is, does such a system […]

2018-08-21 16:21   Click to comment

Roy Spencer: Perseid meteor shower peaks tonight

Update: The NASA Fireball Network, monitoring only a few U.S. locations, logged 56 Perseid fireballs last night. The best meteor shower of the year — the Perseids — peaks tonight. In preparation for a planned outing to a dark sky site, I ran my camera from our roof last night for 8 hours. Despite significant

2018-08-12 14:53   Click to comment

Roy Spencer: Make Agriculture Great Again: Record corn yield and soybean production predicted for 2018

Today the USDA released its forecast for corn and soybean yields and production for the 2018 growing season. It is expected that corn yields (bushels per acre) in the U.S. will experience their third consecutive record year, with an average of 178.4 bu/ac: The last time there were three consecutive record high yield years was

2018-08-10 17:35   Click to comment

Roy Spencer: Fake Climate News from Reuters

Will Google down-rank Reuters for spreading fake climate news? I spoke at Heartland’s America First Energy Conference, held in New Orleans on Tuesday, August 7, 2018. A young Reuters reporter was there, who asked me before I spoke to tell him what I was going to say. I simply replied, why don’t you come and

2018-08-10 15:59   Click to comment

Roy Spencer: UAH Global Temperature Update for July, 2018: +0.32 deg. C

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for July, 2018 was +0.32 deg. C, up from the June value of +0.21 deg. C: Some regional LT departures from the 30-year (1981-2010) average for the last 19 months are: YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2017 01 +0.33 +0.31 +0.34

2018-08-01 12:21   Click to comment

Roy Spencer: Sexy “Miss Climate” Competition to Combat Climate Change Apathy

I’m not making this up. The president of our university forwarded some flashy brochures he received from Virendra Rawat, Indian founder and director of the global “Green Schools” concept. They are auditioning for young females to compete to become “Miss Climate – 2018”. As the letter states, “winners of this beauty pageant will serve as

2018-07-27 15:00   Click to comment

Roy Spencer: “End of days” black sky in Siberia due to “perfect storm” of smoke and clouds

The UK tabloid newspaper The Sun is known for carrying National Enquirer-style sensationalist news, such as UFOs seen from the Space Station (usually window reflections). A recent story entitled END OF DAYS Mystery as sky turns black in the middle of DAY in remote Russian towns with locals blaming secret weapons test, aliens or the

2018-07-25 14:34   Click to comment

Roy Spencer: The “Temperature Circle” Deception

About a year ago, Finnish climate researcher Antti Lipponen posted a new way to visualize global warming, an animation he called the “temperature circle”. It displays the GISS land temperature data as colored bars for each country in the world radiating from a circle. As the temperature in a country goes up, the colored bar

2018-07-24 13:20   Click to comment

Roy Spencer: Summer Causes Climate Change Hysteria

Summers in the U.S. are hot. They always have been. Some are hotter than others. Speaking as a PhD meteorologist with 40 years experience, this week’s heat wave is nothing special. But judging from the memo released on June 22 by Public Citizen (a $17 million per year liberal/progressive consumer rights advocacy group originally formed

2018-07-03 14:16   Click to comment

Roy Spencer: UAH Global Temperature Update for June, 2018: +0.21 deg. C

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for June, 2018 was +0.21 deg. C, up a little from the May value of +0.18 deg. C: Some regional LT departures from the 30-year (1981-2010) average for the last 18 months are: YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2017 01 +0.33

2018-07-02 16:08   Click to comment

Roy Spencer: Antarctic Ice Sheet Collapses, Nobel Prizes, and the Psychology of Catastrophism

Last week I had the privilege of being invited to present a talk at a small conference of world experts in a variety of disciplines. The venue was spectacular, on the French Riviera, and we had an entire late-1800s hotel to ourselves, right on the Mediterranean. For me, it was a once-in-a-lifetime experience. I had

2018-06-17 17:02   Click to comment

Roy Spencer: UAH Global Temperature Update for May, 2018: +0.18 deg. C

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for May, 2018 was +0.18 deg. C, down a little from the April value of +0.21 deg. C: Some regional LT departures from the 30-year (1981-2010) average for the last 17 months are: YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2017 01 +0.33

2018-06-01 15:16   Click to comment

Roy Spencer: Sea Level Rise: Human Portion is Small

There is a continuing debate over sea level rise, especially how much will occur in the future. The most annoying part of the news media reporting on the issue is that they imply sea level rise is all the fault of humans. This is why the acceleration of sea level rise is what is usually

2018-05-25 16:33   Click to comment

Roy Spencer: NASA satellite reveals extensive Hawaii SO2 cloud

The eruption of Kilauea volcano on the Big Island of Hawaii has been unleashing a huge cloud of sulfur dioxide (SO2), which has been showing up in NASA’s Suomi satellite imagery every day. Yesterday, May 21, the cloud is shown here in false color, based upon measurements from the OMPS sensor on that satellite. Carried

2018-05-22 23:05   Click to comment

Roy Spencer: In Defense of the Term “Greenouse Effect”

Over the years I have gone along with the crowd and derided the term “greenhouse effect” as a poor analogy between the atmosphere’s ability to keep the Earth’s surfce warmer than it would be without IR-absorbing (and thus IR-emitting) gases, versus a greenhouse in which plants are grown. But the more I think about it,

2018-05-09 14:03   Click to comment

Roy Spencer: UAH Global Temperature Update for April, 2018: +0.21 deg. C.

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for April, 2018 was +0.21 deg. C, down a little from the March value of +0.24 deg. C: Some regional LT departures from the 30-year (1981-2010) average for the last 16 months are: YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2017 01 +0.33

2018-05-01 14:29   Click to comment

Roy Spencer: New Lewis & Curry Study Concludes Climate Sensitivity is Low

Global warming “problem” cut by 50% As readers here are aware, I don’t usually critique published climate papers unless they are especially important to the climate debate. Too many papers are either not that important, or not that convincing to me. The holy grail of the climate debate is equilibrium climate sensitivity (ECS): just how

2018-04-24 15:01   Click to comment

Roy Spencer: The 100th Meridian Agricultural Scare: Another Example of Media Hype Exceeding Reality

A new paper published in the AMS Earth Interactions entitled, Whither the 100th Meridian? The Once and Future Physical and Human Geography of America’s Arid-Humid Divide, Part II: The Meridian Moves East, discusses the climate model-expected drying of the western U.S. and how this will affect the agricultural central- and east- U.S. as the climatological

2018-04-18 15:52   Click to comment


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