Of course I didn't read the article. I hear it's paywall, and I and the economist's paywall really don't get along. But, it being a short term study doesn't ch

Of course I didn't read the article. I hear it's paywall, and I and the economist's paywall really don't get along. But, it being a short term study doesn't change much. A temporary increase in pollutants will serve to exacerbate underlying conditions. Supposing areas which experience the largest increase in the short term were also susceptible to higher levels historical, and most impacted by previous short term increases and we're back where we started.