Water (IMAGE) Michigan State University Caption "In cities across the United States, water affordability is becoming an increasingly critical issue," said Michigan State University researcher Elizabeth Mack of her study in PLOS ONE. Credit Michigan State University Usage Restrictions None 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.