Roy Spencer, PhD.

The goal of reaching “Net Zero” global anthropogenic emissions of carbon dioxide sounds overwhelmingly difficult. While humanity continues producing CO2 at increasing rates (with a temporary ...

https://www.drroyspencer.com/2024/04/net-zero-co2-emissions-a-damaging-and-totally-unnecessary-goal/

I feel fortunate to have witnessed two total solar eclipses in my lifetime. The first was at Center Hill Lake in central Tennessee in 2017, then this year’s (April 8) eclipse from Paducah, Kent...

https://www.drroyspencer.com/2024/04/the-2024-solar-eclipse-whats-all-the-fuss-about/

The Version 6 global average lower tropospheric temperature (LT) anomaly for March, 2024 was +0.95 deg. C departure from the 1991-2020 mean, up slightly from the February, 2024 anomaly of +0.93 d...

https://www.drroyspencer.com/2024/04/uah-global-temperature-update-for-march-2024-0-95-deg-c/

The Version 6 global average lower tropospheric temperature (LT) anomaly for February, 2024 was +0.93 deg. C departure from the 1991-2020 mean, up from the January, 2024 anomaly of +0.86 deg. C, ...

https://www.drroyspencer.com/2024/03/uah-global-temperature-update-for-february-2024-0-93-deg-c/

Due to a recent hardware failure affecting most UAH users of our dedicated “Matrix” computer system, the disk drives are having to be repopulated from backups. This is now in progress, but I ...

https://www.drroyspencer.com/2024/02/uah-global-temperature-update-for-february-2024-delayed/

Since the blogosphere continues to amplify Gavin Schmidt’s claim that the way John Christy and I plot temperature time series data is some form of “trickery”, I have come up with a way to d...

https://www.drroyspencer.com/2024/02/proof-that-the-spencer-christy-method-of-plotting-temperature-time-series-is-best/

When computing temperature trends in the context of “global warming” we must choose a region (U.S.? global? etc.) and a time period (the last 10 years? 50 years? 100 years?) and a season (sum...

https://www.drroyspencer.com/2024/02/what-period-of-warming-best-correlates-with-climate-sensitivity/

Updated through 2023, here is a comparison of the “USA48” annual surface air temperature trend as computed by NOAA (+0.27 deg. C/decade, blue bar) to those in the CMIP6 climate models for the...

https://www.drroyspencer.com/2024/02/u-s-a-temperature-trends-1979-2023-models-vs-observations/

The Version 6 global average lower tropospheric temperature (LT) anomaly for January, 2024 was +0.86 deg. C departure from the 1991-2020 mean, up slightly from the December, 2023 anomaly of +0.83...

https://www.drroyspencer.com/2024/02/uah-global-temperature-update-for-january-2024-0-86-deg-c/

Since Gavin Schmidt appears to have dug his heels in regarding how to plot two (or more) temperature times series on a graph having different long-term warming trends, it’s time to revisit exac...

https://www.drroyspencer.com/2024/02/gavins-plotting-trick-hide-the-incline/