Meanings of dirty thirty in anglès

Britain's top five polluters, including the dirty thirty's fourth-ranked Drax power station, saw their total emissions rise by 2.6 percent to 60.1 million metric tons.

I must have forgotten something major-anotherDirty Thirty birthday celebration, perhaps.

Power creator Courtney Kemp has another crime drama up her sleeve with Dirty Thirty.

Dirty Thirty will be a one-hour drama loosely based on real-life rogue police officers who worked at NYPD's 30th Precinct in the 1990s.