The National Transportation Safety Board approved its investigative findings into last year’s train derailment in East Palestine. It issued recommendations on rail safety and emergency response, criticizing Norfolk Southern for keeping critical information away from responders. Former workers at an oil refinery in Philadelphia remember the fire and explosion five years ago that shuttered the plant. Plus, giant wood sculptures at a botanic garden help visitors understand the bees and other pollinators that live among us.

We have news about pollution from gas stoves, another mishap at the Mountain Valley Pipeline, a new director of the Allegheny County Health Department and a debate in the state legislature about renewable energy goals.