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
The Global Warming Debate Spectrum
by Roy W. Spencer, Ph. D. on 2017-03-24 at 14:38
In the debate arena, the public likes simple narratives. If the narrative supports their pre-conceived notions, they like it even better. On technical issues which have major public policy impact, however, the nuances can be very important even if they are not easily explained or grasped. The scientific nuances in the climate change realm are […]
The Russians Hacked our Winter Weather
by Roy W. Spencer, Ph. D. on 2017-03-23 at 13:18
Now that winter has officially ended, I thought it would be useful to address the central role that Russia played in ending California’s drought, as well as in the unusually warm conditions over the eastern U.S. this past winter. First, let’s address the record California rains and mountain snowpack. While such a wet winter usually […]
Brace Yourselves: Snowstorm to Breed Global Warming Hysteria
by Roy W. Spencer, Ph. D. on 2017-03-13 at 18:16
With apologies to Benjamin Franklin, only three things in life are certain: death, taxes, and blaming bad weather on global warming. By mid-week this week, newspaper and website stories will be reporting that climate experts (e.g. Al Gore, Bill Nye) have now blamed the historic snowstorm and unseasonable cold now descending on New England on […]
UAH Version 6 Dataset Paper Published Online
by Roy W. Spencer, Ph. D. on 2017-03-07 at 18:12
At long last, our Version 6 dataset paper has been published, with the online version available as of today: UAH Version 6 Global Satellite Temperature Products: Methodology and Results We have been working with NCEI (old NCDC) to get the dataset and code archived there (contrary to some claims, our Version 5.6 dataset and code […]
UAH Global Temperature Update for February, 2017: +0.35 deg. C.
by Roy W. Spencer, Ph. D. on 2017-03-02 at 12:37
The Version 6.0 global average lower tropospheric temperature (LT) anomaly for February 2017 was +0.35 deg. C, up a little from the January value of +0.30 deg. C (click for full size version): The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average for the last 26 months are: YEAR MO GLOBE NHEM. […]
by Roy W. Spencer, Ph. D. on 2017-02-18 at 12:59
Once in a while I share “fan mail” I get in response to my blog, and I thought the following example was unusually interesting. I won’t bother to rebut the mix of misrepresentations, misinformation, etc. This is more for entertainment value. WARNING: The language in the following is, shall we say, colorful. Don’t read any […]
Oroville Dam: Crisis Eases, Emergency Spillway Repairs in Progress
by Roy W. Spencer, Ph. D. on 2017-02-15 at 14:58
With the evacuation order lifted last evening, and ~185,000 residents returning to their homes in Oroville and surrounding communities, emergency repairs continue around the clock on the damaged emergency spillway at Oroville Dam. Yesterday morning (Feb. 14), a concrete pumper and boulders were being used to patch the main erosion features that developed when the […]
The Oroville Dam Crisis: What Happened, What’s Next?
by Roy W. Spencer, Ph. D. on 2017-02-14 at 14:39
After watching the Oroville Dam crisis evolve over the last several days, and reading various experts’ opinions about what might be going on both with both the facility itself and behind the scenes decision-making, I thought it might be time to step back and discuss where we are at, and where we might be going. […]
Oroville Emergency Spillway: Does this Look Like Bedrock to You?
by Roy W. Spencer, Ph. D. on 2017-02-13 at 21:35
I’ve had a little criticism here and on Facebook that I’m not a geologist, so I shouldn’t be second-guessing the Oroville Dam engineers. They called for evacuations last evening out of an abundance of caution. That the emergency spillway is no doubt built on bedrock, and so it is safe. Well, if it was only […]
Oroville Dam Emergency Spillway Repairs Starting
by Roy W. Spencer, Ph. D. on 2017-02-13 at 16:34
With daylight and Oroville Lake water levels now 4 feet below the lip of the emergency spillway, we can see that the area of concern is a gouge which developed near the far end of the concrete weir, and was eroding uphill toward that structure; for scale, those yellow spots are people inspecting the gouge […]