Sure. The objective data I provided shows a correlation and not a causation. But it contradicts the study of a "huge" reduction in intelligence due to air pollution.

If air pollution causes reduction in intelligence, IQs would not have increased so much in the past 100 years as air pollution skyrocketed.

Can't say air pollution causes huge reduction in intelligence while IQs have drastically increased in an increasing air pollution environment.

The study claims a causal relationship - air pollution causes huge reduction in intelligence. The objective data of the last 100 years clearly shows that's not true.