A New England environmental law firm is suing Greyhound Lines, alleging that their buses are violating the Clean Air Act by repeatedly leaving their engines on and emitting “unnecessary ...

A spokesperson for Greyhound said the company does not comment on pending litigation. The foundation said it has filed nine lawsuits since 2019 over bus idling in Massachusetts and Connecticut.

That’ll likely end in six weeks or so, when the Greyhound bus company shuts down its big station at 630 W. Harrison St., as a prelude to the site being cleared and redeveloped for residential use.