Part 2 in Joel Schwartz’s look at EPA new rules on particulates. The punchline:
Thus, the entire PM2.5 regulatory enterprise rests fundamentally on the results of small and inconsistent statistical associations that are likely the spurious result of publication and model-selection biases. The result is unwarranted public fear, an ever-expanding regulatory state, and large amounts of Americans’ income squandered on minute or perhaps non-existent risks.