Quote:
Originally Posted by sounding
The satellite temperature data for August 2022 has just been published by the University of Alabama at Huntsville (UAH), which shows that the global, lower-tropospheric layer (where weather mostly happens), was cooler than July. This is part of the reason for the slow hurricane season. Also, since 2015 the linear trend for the January - August temperature data shows overall slight cooling -- that's a 7-year cooling trend.
|
Maybe you can explain how there is a cooling trend for the last 7 years when I see exactly the opposite. Almost every month from 2015 to now has a temperature hotter than the average for that month using a mean of temps for that month from 1991 to 2020.
Additionally, and this is important, the Huntsville group has recently readjusted "normal" to a higher number because they are using the average of 1991-2020 as "normal" now whereas in the past they used a cooler average 30 year range. This has downshifted the deviation from normal in their reports.
Do not be deceived by the manner of presentation Spencer uses in his charting. When you use the last 30 years only, which has been an increasingly hotter three decades as "normal" you artificially create visually misleading graphs. Think of it this way. You are sick. For the last month you are running a fever. Sometimes it is 100, sometimes it is 103 etc. Every once in a while you are only 99. I create a graph of your temperature using the last 30 days and call "normal" whatever the average is for that time period. It turns out your average temp was 101. That does not mean that on days you were 100.4 you were below average in a biological sense, only in a statistical sense because of the way you chose to collect and analyze. That is what Spencer's chart does as seen in the photo below. There is a lot of blue cooler than average from 1979 to 2000. That falsely suggests that those years were years of global cooling. A complete lie and a complete distortion of the evidence. That is what you get from Spencer. He is a known climate change skeptic and a denier of evolution having gone so far as to claim evolution should not be taught in school.
Here is a chart of the readings since Jan 2021. It does not format well here but you get the idea. Of the 20 months reported, by Roy Spencer, 3 show a decline from the running average, in two cases by 0.01 degrees, one is neutral and the other 16 show an increase in mean global temperature. This is during a La Nina period which tends to be cooler.
YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST
2021 01 0.12 0.34 -0.09 -0.08 0.36 0.50 -0.52
2021 02 0.20 0.32 0.08 -0.14 -0.66 0.07 -0.27
2021 03 -0.01 0.13 -0.14 -0.29 0.59 -0.78 -0.79
2021 04 -0.05 0.05 -0.15 -0.28 -0.02 0.02 0.29
2021 05 0.08 0.14 0.03 0.06 -0.41 -0.04 0.02
2021 06 -0.01 0.30 -0.32 -0.14 1.44 0.63 -0.76
2021 07 0.20 0.33 0.07 0.13 0.58 0.43 0.80
2021 08 0.17 0.26 0.08 0.07 0.32 0.83 -0.02
2021 09 0.25 0.18 0.33 0.09 0.67 0.02 0.37
2021 10 0.37 0.46 0.27 0.33 0.84 0.63 0.06
2021 11 0.08 0.11 0.06 0.14 0.50 -0.43 -0.29
2021 12 0.21 0.27 0.15 0.03 1.63 0.01 -0.06
2022 01 0.03 0.06 0.00 -0.24 -0.13 0.68 0.09
2022 02 -0.00 0.01 -0.02 -0.24 -0.05 -0.31 -0.50
2022 03 0.15 0.27 0.02 -0.08 0.22 0.74 0.02
2022 04 0.26 0.35 0.18 -0.04 -0.26 0.45 0.60
2022 05 0.17 0.24 0.10 0.01 0.59 0.23 0.19
2022 06 0.06 0.07 0.04 -0.36 0.46 0.33 0.11
2022 07 0.36 0.37 0.35 0.13 0.84 0.55 0.65
2022 08 0.28 0.31 0.24 -0.04 0.59 0.50 -0.01