Powerful, terrifying, indisputable positive feedback: More Republicans cause more CO2, which causes less rain on the Fourth of July, which causes more Republicans

Is It Parody, Or Is It Harvard? | Power Line

The methodology is complex and highly mathematical. Climate change even rears its head:

...the likelihood of Fourth of July rain has decreased over time ...

OK, I won’t keep you in suspense any longer. Here are the key findings of the study:

We find that days without rain on Fourth of July in childhood have lifelong effects. In particular, they shift adult views and behavior in favor of the Republicans and increase later-life political participation.