Harvesting water from vapor (IMAGE) Osaka Metropolitan University Caption Water molecules in vapor are drawn to a water-loving polymer in a copolymer solution. The presence of the less hydrophilic polymer causes an exchange that helps release the water under near ambient conditions. Credit Osaka Metropolitan University Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. 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.