Global Ozone (IMAGE) University of North Carolina at Chapel Hill Caption This is Jason West, associate professor of environmental sciences at UNC-Chapel Hill, in his office at Gillings School of Global Public Health, explaining how pollution emitted near equator has biggest impact on global ozone. Credit Jonathan Gardiner, UNC-Chapel Hill Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.