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 July, 2017: +0.28 deg. C
    by Roy W. Spencer, Ph. D. on 2017-08-01 at 12:37

    The Version 6.0 global average lower tropospheric temperature (LT) anomaly for July, 2017 was +0.28 deg. C, up a little from the June, 2017 value of +0.21 deg. C (click for full size version): The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average for the last 19 months are: YEAR MO GLOBE […]

  • 4,300 Days Since Last U.S. Major Hurricane Strike
    by Roy W. Spencer, Ph. D. on 2017-07-31 at 11:39

    Wednesday of this week will mark 4,300 days since the last major hurricane (Category 3 or stronger, 111-129 mph maximum sustained winds) made landfall in the U.S. That’s almost 12 years. The last major hurricane to make landfall in the U.S. was Wilma striking Florida on October 24, 2005, one of several strong hurricanes to […]

  • Study: Sea Level Rise Revised Downward
    by Roy W. Spencer, Ph. D. on 2017-07-21 at 12:53

    If I had not looked past the headline of the press report on a new study, I would have just filed it under “It’s worse than we thought”. A new study in Nature reported on July 17 carried the following headlines: “Satellite snafu masked true sea-level rise for decades” “Revised tallies confirm that the rate […]

  • Warming in the Tropics? Even the New RSS Satellite Dataset Says the Models are Wrong
    by Roy W. Spencer, Ph. D. on 2017-07-14 at 14:40

    From recent media reports (e.g. the WaPo’s Capital Weather Gang) you would think that the new RSS satellite dataset for the lower troposphere (LT) has resolved the discrepancy between climate models and observations. But the new LT dataset (Version 4, compared to Version 3.3) didn’t really change in the tropics. This can be seen in […]

  • The Great American Eclipse – 40 days to go
    by Roy W. Spencer, Ph. D. on 2017-07-12 at 14:02

    The Great American Eclipse of Monday, August 21, 2017 will be one of only a couple of chances for many Americans to experience a total solar eclipse. This is the first coast-to-coast total eclipse since 1918. The last total eclipse visible from any point in the contiguous U.S. was 38 years ago, in 1979. Your […]

  • Comments on the New RSS Lower Tropospheric Temperature Dataset
    by Roy W. Spencer, Ph. D. on 2017-07-06 at 15:02

    It was inevitable that the new RSS mid-tropospheric (MT) temperature dataset, which showed more warming than the previous version, would be followed with a new lower-tropospheric (LT) dataset. (Carl Mears has posted a useful FAQ on the new dataset, how it differs from the old, and why they made adjustments). Before I go into the […]

  • No, it didn’t snow in Kenya yesterday
    by Roy W. Spencer, Ph. D. on 2017-07-05 at 14:18

    There is much internet buzzing about “snow” in Kenya yesterday, and its connection to climate change. Here’s what the event looked like on a road near Nyahururu, Kenya, which is on a plateau around 7,800 ft. elevation, and is positioned right on the equator: If you click to get the full-size photo, you will notice […]

  • Stephen Hawking Flies off the Scientific Reservation
    by Roy W. Spencer, Ph. D. on 2017-07-03 at 17:47

    I can understand when pop-scientists like Bill Nye spout scientific silliness. But complete nonsense coming from Stephen Hawking? Really? In this video, Stephen Hawking claims that Trump withdrawing the U.S. from the Paris Accord could lead to the Earth being pushed past a tipping point, with Venus-like 250 deg. C temperatures and sulfuric acid rain. […]

  • UAH Global Temperature Update for June, 2017: +0.21 deg. C
    by Roy W. Spencer, Ph. D. on 2017-07-03 at 16:49

    Lowest global temperature anomaly in last 2 years (since July, 2015) The Version 6.0 global average lower tropospheric temperature (LT) anomaly for June, 2017 was +0.21 deg. C, down from the May, 2017 value of +0.44 deg. C (click for full size version): The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average […]

  • The AMS Scolds Rick Perry for Believing the Oceans are Stronger than Your SUV
    by Roy W. Spencer, Ph. D. on 2017-06-22 at 16:33

    Yesterday, the American Meteorological Society (AMS) sent a letter to DOE Secretary Rick Perry, scolding him for the following opinion he uttered in a CNBC interview on June 19. Quoting from a Washington Post article: Asked in an interview on CNBCs “Squawk Box” whether he believed that carbon dioxide was “the primary control knob for […]

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