Less water going to Santiago de Chile (IMAGE) Institute of Science and Technology Austria Caption Chile, 2017. The Upper Rio Yeso catchment: a tributary to the Maipo River which serves the Chilean capital, Santiago. Credit © Thomas Shaw | ISTA Usage Restrictions Free to use when reporting about research and ISTA License Licensed 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.