Bottle-Green Icebergs (IMAGE) University of California - San Diego Caption A blue iceberg at noon turns green in the evening. These bottle green icebergs are one of nature's peculiarities. The authors simulated the properties of the green iceberg by including a small amount of minerals and only very little air and brine in the ice. The atmospheric lighting model uses Rayleigh scattering to obtain the spectral radiance for the skylight and the sun. Credit UC San Diego Usage Restrictions Mandatory Credit: UC San Diego 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.