On the ice (IMAGE) Columbia Climate School Caption Lead author Chloe Gustafson and mountaineer Meghan Seifert install geophysical instruments to measure groundwater below West Antarctica’s Whillans Ice Stream. Credit Kerry Key/Lamont-Doherty Earth Observatory Usage Restrictions Credit must be given. 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.