We see that the hottest temperatures, (averaged over the US), were not only much, much higher in the 1930s. They were also higher during the 1920s. Indeed there have been many other years with higher temperatures than most of the recent ones.
The plot thickens!
I mentioned in my previous post that the latest draft climate report, published in June, had seemingly left out a rather embarrassing table from the Executive Summary, one that had previously been written into the Third Draft, published last December.
As the link to the Third Draft had disappeared from the NYT, I could not show it.
However, Michael Bastasch, writing over at WUWT, did have the link, so we can now compare the relevant sections.
First, the latest draft, the Fifth:
Note the emphasis on daily high and low records. As I pointed out earlier, the ratio of hot to cold has more to do with there being less cold records nowadays, rather than more hot ones.
But now compare with the same section on the Third Draft:
The headline box only talks about global extreme heat rather than US, and the next paragraph can only claim that extremely warm days have become warmer since the 1960s.
The maps and graphs that follow on the next page show just why. I’ll zoom in on the right hand map:
Remember that the maps depict the difference between the average for 1986-2015 and the average for 1901-60.
Although they try to blame the much lower temperatures on the dust bowl era, an average for 60 years should make this much less significant.
What this map shows is highly damaging to the global warming alarmism industry. It proves that, regardless of average temperature trends, temperatures at the top end of the scale are not increasing. Note that this applies even in the case of California, until recently the golden child of warmists.
We may be seeing milder winters and warmer nights, but, as far as the US is concerned, we are certainly not seeing hotter days.
Check out the maximum temperature graph as well:
We see that the hottest temperatures, (averaged over the US), were not only much, much higher in the 1930s. They were also higher during the 1920s. Indeed there have been many other years with higher temperatures than most of the recent ones.
