We have to get rid of the 1930s EPA heatwave records! Warmist Prof. Andrew Dessler tries to erase 1930s heatwaves – Seeks to ‘change’ definition of heatwave
Climate activists don't like seeing heatwaves in the 1930s hotter by far than any heatwaves today according to Biden's EPA. So a concerted effort is being made led by Prof. Andrew Dessler, to revise the inconvenient data & cool the past compared to today's temps. The climate campaigners erased the Medieval Warm Period previously and they erased the temperature pause.
Note that the trend is measured from 1948, so the extreme heat of the 1930s is not even reflected here.
There is one other consideration here. Dessler has also used Berkeley Earth homogenised dataset (BEST). His calculations indicate just how divorced from reality BEST is, with temperatures far above what the actual data suggest.
Finally, let’s look back to the graph for Texas, which I showed in my earlier post:
Note that the average of “hot days” is 20 a year – in other words, 95% percentile to all intents and purposes.
Andrew Dessler is Professor of Atmospheric Sciences & climate “scientist” at Texas A&M.
There was time when science was about facts and truths. Now it seems that climate science is not interested in data but feelings.
The chart he disparages has been used as a long-term indicator of US heatwaves for several years by the EPA. Moreover, it tallies with other official charts published in the National Climate Assessment in 2017:
Heat waves (6-day periods with a maximum temperature above the 90th percentile for 1961–1990) increased in frequency until the mid-1930s, became considerably less common through the mid-1960s, and increased in frequency again thereafter (Figure 6.4). As with warm daily temperatures, heat wave magnitude reached a maximum in the 1930s
“the warmest daily temperature of the year increased in some parts of the West over the past century (Figure 6.3), but there were decreases in almost all locations east of the Rocky Mountains. In fact, all eastern regions experienced a net decrease (Table 6.2), most notably the Midwest (about 2.2°F [1.2°C]) and the Southeast (roughly 1.5°F [0.8°C]). The decreases in the eastern half of Nation, particularly in the Great Plains, are mainly tied to the unprecedented summer heat of the 1930s Dust Bowl era”