Thin Mid-level Clouds (IMAGE) Stockholm University Caption On this picture, thin mid-level clouds are observed in the foreground with deep convective clouds in the background. Credit Photograph: Radovan Krejci, co-author of the study Usage Restrictions Creative Commons 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.