GEMM Asia Summit (IMAGE) Optica Caption The first-of-its-kind GEMM Asia summit provided a critical platform to discuss the urgent crises facing mega-cities in Asia. Credit Optica Usage Restrictions None License Original 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.