Who Decides Chemical Warnings?

The Supreme Court is considering whether the federal Environmental Protection Agency or states and juries can require additional cancer warnings on widely used pesticides like glyphosate. The outcome will determine whether one uniform federal standard controls hazard communication or whether states can impose faster, varied warnings that drive local litigation and settlements. — This frames a broader federalism and consumer‑protection question: who gets to warn the public about emerging risks — an answer that will reshape mass‑tort leverage, regulatory speed, and corporate risk management.