Cliff Mass, Professor of Atmospheric Science at the University of Washington and chief scientist of the Northwest Modeling Consortium mentioned in his recent blog posts that the heat wave was a perfect storm of factors like compression from sinking air coming off the West slopes of the Cascades. He also said (https://cliffmass.blogspot.com/2021/06/incredible-temperatur...):

> Is global warming contributing to this heatwave? The answer is certainly yes. Would we have had a record heatwave without global warming. The answer is yes as well.

He also said in the same article:

> Let me end with the golden rule of temperature extremes: the bigger the temperature extreme the SMALLER the contribution of global warming. Think about that.

Even the Associated Press has fallen to this tendency to attribute everything solely to climate change. They wrote an article (https://apnews.com/article/climate-climate-change-science-en...) about a new study that came with a sensationalist headline, even though the actual contents of the study (https://www.worldweatherattribution.org/wp-content/uploads/N...) show this was a rare event (1 in 1000 years) with only a few degrees of contribution to temperature from climate change.