Jan 132016
 

Dr. Spencer is an internationally recognized climatologist who explains things like why we do not know whether man is causing any climate change or not.

Or, is the planet really warming all over?

Roy Spencer, PhD. Climate Change Research Scientist, Author, Former NASA Scientist

  • UAH Global Temperature Update for September, 2017: +0.54 deg. C
    by Roy W. Spencer, Ph. D. on 2017-10-02 at 12:49

    The Version 6.0 global average lower tropospheric temperature (LT) anomaly for September, 2017 was +0.54 deg. C, up from the August, 2017 value of +0.41 deg. C (click for full size version): The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average for the last 21 months are: YEAR MO GLOBE NHEM. SHEM. […]

  • The Monty Hall Problem: There Is No Correct Answer
    by Roy W. Spencer, Ph. D. on 2017-10-01 at 11:57

    A diversion from global warming topics. The simple little probability problem below has apparently been debated for many years. It came to prominence when Marilyn vos Savant answered a reader’s question about it. Her answer was believed to be wrong by some of the greatest statistical minds in the world, and eventually most of them […]

  • The 11-Year Major Hurricane Drought: Much More Unusual than Two Cat 4 Strikes
    by Roy W. Spencer, Ph. D. on 2017-09-21 at 13:37

    Weather.com published an article noting that the two Cat 4 hurricane strikes this year (Harvey and Irma) is a new record. Here’s a nice graphic they used showing both storms at landfall. But the statistics of rare events (like hurricanes) are not very well behaved. Let’s look at this new record, and compared it to […]

  • Cracks in the Empire’s Armor Appear
    by Roy W. Spencer, Ph. D. on 2017-09-20 at 10:54

    Yesterday brought widespread news coverage of a new “study” published in Nature Geoscience which concludes that global warming has not been progressing as fast as expected, and that climate models might be a “little bit” wrong. (That the “little bit” is a factor of 2 or 3 is a fine point upon which we won’t […]

  • Inevitable Disaster: Why Hurricanes Can’t Be Blamed On Global Warming
    by Roy W. Spencer, Ph. D. on 2017-09-18 at 22:45

    Partly in response to the crazy claims of the usual global warming experts (Stevie Wonder, Beyoncé, Jennifer Lawrence, Mark Ruffalo, Bill Nye the Science Guy, Neil deGrasse Tyson, Pope Francis), I decided to write another Kindle e-book. This one is entitled, Inevitable Disaster: Why Hurricanes Can’t Be Blamed On Global Warming. In it I review […]

  • UAH Global Temperature Update for August, 2017: +0.41 deg. C
    by Roy W. Spencer, Ph. D. on 2017-09-05 at 12:58

    The Version 6.0 global average lower tropospheric temperature (LT) anomaly for August, 2017 was +0.41 deg. C, up somewhat from the July, 2017 value of +0.29 deg. C (click for full size version): The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average for the last 20 months are: YEAR MO GLOBE NHEM. […]

  • Houston Area Flooding Seen from Space
    by Roy W. Spencer, Ph. D. on 2017-08-31 at 18:38

    Today the skies cleared enough to see the huge amount of water flowing out of southeast Texas and Houston into the Gulf of Mexico. Here is a before-and-after animation which shows the change from July 28 versus today (August 31), taken from the MODIS imager on NASA’s Terra satellite. Click on the image to enlarge […]

  • Texas Major Hurricane Intensity Not Related to Gulf Water Temperatures
    by Roy W. Spencer, Ph. D. on 2017-08-29 at 17:01

    As the Houston flood disaster is unfolding, there is considerable debate about whether Hurricane Harvey was influenced by “global warming”. While such an issue matters little to the people of Houston, it does matter for our future infrastructure planning and energy policy. Let’s review the two basic reasons why the Houston area is experiencing what […]

  • Why Houston Flooding Isn’t a Sign of Climate Change
    by Roy W. Spencer, Ph. D. on 2017-08-28 at 11:52

    In the context of climate change, is what we are seeing in Houston a new level of disaster which is becoming more common? The flood disaster unfolding in Houston is certainly very unusual. But so are other natural weather disasters, which have always occurred and always will occur. (By the way, making naturally-occurring severe weather […]

  • Hurricane Harvey: 1 Million Hiroshima Bombs per Day
    by Roy W. Spencer, Ph. D. on 2017-08-25 at 18:01

    Mother Nature routinely deals with huge amounts of energy. In the case of hurricanes, some of the solar energy stored in the upper ocean is rapidly removed by strong winds in the form of evaporated water vapor, which then feeds the hurricane as the vapor condenses into rain and the “latent heat of condensation” is […]

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