Hidden Impacts of Sand Extraction and Trade (image) American Association for the Advancement of Science Share Print E-Mail Caption Sand mined near the river is shoveled into trucks in Pak Beng, Laos, a small town next to the Mekong River. This material relates to a paper that appeared in the Sept. 8, 2017, issue of Science, published by AAAS. The paper, by A. Torres at German Centre for Integrative Biodiversity Research (iDiv) in Leipzig, Germany, and colleagues was titled, "A looming tragedy of the sand commons." Credit Aurora Torres, Ph.D., German Centre for Integrative Biodiversity Research (iDiv) Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.