Breathe Easier, New York City: Clean-Air Taxi Rules Are Working May 31, 2019 Research from Dustin Fry, a doctoral research fellow at the Dornsife School of Public Health and colleagues found that clean-air taxi rules in New York City increased cabs' fuel efficiency and reduced air pollution, May 29 HealthDay and MedPage Today articles report. View story (HealthDay) View story (MedPage Today)