 Also on Thursday, justices voted 5-4 to block the Environmental Protection Agency's Good Neighbor Plan, which allows the EPA to regulate air pollution that drifts across state lines. In a statement, Earthjustice wrote, quote, The court's order puts thousands of lives at risk, forces downwind states to regulate their industries more tightly, and tells big polluters that it's open season on our environmental laws, Earthjustice said.