Whitebark Pines (IMAGE) University of California - Santa Barbara Caption Whitebark pines growing in cold, high elevation regions grew more during droughts, which lengthened their growing season. Credit Joan Dudney Usage Restrictions For Use with Credit 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.