Groups that oppose Miami-to-Orlando train Brightline have asked the U.S. Department of Transportation to intervene in the passenger train project, arguing that a reassessment of its environmental impact is needed before moving forward.

Two counties in Florida’s Treasure Coast and advocacy group Citizens Against Rail Expansion in Florida (CARE FL) issued a 24-page letter to the DOT on Tuesday, providing more than a dozen reasons why All Aboard Florida, the parent company of Brightline, should be…