Stacks of Wood (image) Technical University of Munich (TUM) Share Print E-Mail Caption Wood supplies become increasingly scarce when oil prices rise. Credit R. Rosin/TUM Usage Restrictions Free for use for coverage on Technische Universität München with the copyright mentioned. Share Print E-Mail 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.