Archive for September, 2024

David Appell, Awaiting the Death of Climate Skeptics

Wednesday, September 4th, 2024

This blog received the following comment from our alarmist friend David Appell, freelance writer:

“Roy, nobody who is serious about climate change takes you seriously. You’re a denier who has made too many mistakes. No one who knows anything is going to bother commenting here–they upset you so much that all you can think to do is block them.

You long ago left the realm of science. As they say, science advances one funeral at a time. Nobody believes your time series anyway. You did that to yourself.”

As many here know, our UAH temperature dataset is used by researchers around the world, including those who believe the more alarmist narrative of anthropogenic climate change. It has been validated with global weather balloon data in multiple peer reviewed studies.

And I’m not sure why exactly I am a “denier”; that has always mystified me. I’m even part of the supposed 97% that believes the climate system is warming partly (maybe even mostly) from our CO2 emissions. John Christy and I even published a climate sensitivity paper that assumes ALL recent warming is from CO2 emissions.

Also, I routinely allow comments here from people who disagree with me on the science. Very few people have been blocked, and those from bad behavior.

So, I think David was just having a bad day. I imagine these are difficult times for freelance writers since everyone with internet access can now be one. He’s again talking about shutting down his pro-climate alarmism, pro-COVID vaccination blog, Quark Soup. Too bad. So, for those who might want to send wishes of moral support, he can be reached at david.appell@gmail.com.

UAH Global Temperature Update for August, 2024: +0.88 deg. C

Monday, September 2nd, 2024

The Version 6 global average lower tropospheric temperature (LT) anomaly for August, 2024 was +0.88 deg. C departure from the 1991-2020 mean, up slightly from the July, 2024 anomaly of +0.85 deg. C.

Persistent global-averaged warmth was (unusually) contributed to this month by the Southern Hemisphere. Of the 27 regions we routinely monitor, 5 of them set record-warm (or near-record) high monthly temperature anomalies in August, all due to contributions from the Southern Hemisphere:

Global land: +1.35 deg. C

Southern Hemisphere land: +1.87 deg. C

Southern Hemisphere extratropical land: +2.23 deg. C

Antarctica: +3.31 deg. C (2nd place, previous record was +3.37 deg. C, Aug. 1996)

Australia: +1.80 deg. C.

The linear warming trend since January, 1979 now stands at +0.16 C/decade (+0.14 C/decade over the global-averaged oceans, and +0.21 C/decade over global-averaged land).

The following table lists various regional LT departures from the 30-year (1991-2020) average for the last 20 months (record highs are in red):

YEARMOGLOBENHEM.SHEM.TROPICUSA48ARCTICAUST
2023Jan-0.04+0.05-0.13-0.38+0.12-0.12-0.50
2023Feb+0.09+0.17+0.00-0.10+0.68-0.24-0.11
2023Mar+0.20+0.24+0.17-0.13-1.43+0.17+0.40
2023Apr+0.18+0.11+0.26-0.03-0.37+0.53+0.21
2023May+0.37+0.30+0.44+0.40+0.57+0.66-0.09
2023June+0.38+0.47+0.29+0.55-0.35+0.45+0.07
2023July+0.64+0.73+0.56+0.88+0.53+0.91+1.44
2023Aug+0.70+0.88+0.51+0.86+0.94+1.54+1.25
2023Sep+0.90+0.94+0.86+0.93+0.40+1.13+1.17
2023Oct+0.93+1.02+0.83+1.00+0.99+0.92+0.63
2023Nov+0.91+1.01+0.82+1.03+0.65+1.16+0.42
2023Dec+0.83+0.93+0.73+1.08+1.26+0.26+0.85
2024Jan+0.86+1.06+0.66+1.27-0.05+0.40+1.18
2024Feb+0.93+1.03+0.83+1.24+1.36+0.88+1.07
2024Mar+0.95+1.02+0.88+1.35+0.23+1.10+1.29
2024Apr+1.05+1.25+0.85+1.26+1.02+0.98+0.48
2024May+0.90+0.98+0.83+1.31+0.38+0.38+0.45
2024June+0.80+0.96+0.64+0.93+1.65+0.79+0.87
2024July+0.85+1.02+0.68+1.06+0.77+0.67+0.01
2024August+0.88+0.96+0.81+0.88+0.69+0.94+1.80

The full UAH Global Temperature Report, along with the LT global gridpoint anomaly image for August, 2024, and a more detailed analysis by John Christy, should be available within the next several days here.

Lower Troposphere:

http://vortex.nsstc.uah.edu/data/msu/v6.0/tlt/uahncdc_lt_6.0.txt

Mid-Troposphere:

http://vortex.nsstc.uah.edu/data/msu/v6.0/tmt/uahncdc_mt_6.0.txt

Tropopause:

http://vortex.nsstc.uah.edu/data/msu/v6.0/ttp/uahncdc_tp_6.0.txt

Lower Stratosphere:

http://vortex.nsstc.uah.edu/data/msu/v6.0/tls/uahncdc_ls_6.0.txt