[dirtboy]

So despite 70 years of automobiles and those dreaded SUVs spewing carbon dioxide into the atmosphere, we still cannot top temps from the 1930s.

[GnL]

Exactly. It is interesting that as the number of cars and factories multiplied during the 40's, 50's, 60's, 70's, 80's, and 90's, the temperatures in July got cooler. Hmmm.

[cogitator]

So despite 70 years of automobiles and those dreaded SUVs spewing carbon dioxide into the atmosphere, we still cannot top temps from the 1930s.

In July; because there was one massive, historical heat wave in July 1936 in the middle of the "Dust Bowl" heat and drought that set numerous records.