DRILLINDrilling DownG DOWN (IMAGE) Columbia Climate School Caption Left to right: A driller, and study coauthors Benjamin Bostick and Nguyen-Ngoc Mai work at a high-arsenic well near the village of Van Phuc. Credit Charles Harvey/MIT 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.