Blackcap Blog

Published at 13:10 on 25 June 2021

In a recent post of his, he claims, regarding extreme heat waves:

There is no evidence that such a wave pattern is anything other than natural variability (I have done research on this issue and published in the peer-reviewed literature on this exact topic).

This is a recurring pattern with Mass: passing off a topic on which there is debate in the scientific community, as something that is settled, with his own personal opinion in the debate as the settled truth. Actually, there is some evidence of the sort Mass denies:

“This is a weather system that can be very persistent, it can last for many days,” said Dim Coumou, a researcher at the Potsdam Institute for Climate Impact Research. “It brings clear skies, very high temperature[s].”

While climate change has already warmed the planet about 1.2C since pre-industrial times, scientists such as Coumou believe it has also shifted atmospheric patterns.

His research shows that a gradual weakening of the jet stream during summer makes these high-pressure systems more persistent, resulting in longer heatwaves. The jet stream, a band of fast-moving wind high in the atmosphere, greatly influences weather patterns in the northern hemisphere

Source.

Edit: And his grasp of statistics is all wrong, too.