Dr. Michael Chang is senior research scientist in the school of earth and atmospheric sciences at Georgia Tech and a board member of The Clean Air Campaign.

Dr. W. Gerald Teague, M.D., is director, Emory Pediatrics Asthma Clinical Research Center and a recent board member of The Clean Air Campaign.

Stuart Brown, M.D., is the former director of the Georgia Division of Public Health. He takes a look at how teleworking can help employees' health.