Yuhang Wang and China Maps (IMAGE) Georgia Institute of Technology Caption Georgia Tech Professor Yuhang Wang explains maps showing terrain, population density and other issues affecting haze formation in the East China Plains during winter months. Credit Credit: John Toon, Georgia Tech 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.