>there's no cognitive effect from pollution The worst case is that there is a positive effect from pollution. When one looks at the historic data it wasn't unt

>there's no cognitive effect from pollution The worst case is that there is a positive effect from pollution. When one looks at the historic data it wasn't until people started living in smog filled cities that children started attending schools. We shouldn't fall into the trap of assuming causation and correlation just because it gels with something in your subconscious.