Technical snowmaking (IMAGE) University of Basel Caption Technical snowmaking on the Gemsstock, Switzerland. Credit Valentin Luthiger Usage Restrictions May only be used in reporting on the publication by Maria Vorkauf et al. 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.