Jennifer Frederick, Arctic researcher (IMAGE) DOE/Sandia National Laboratories Caption Sandia National Laboratories researcher Jennifer Frederick explores a river in the North Slope of Alaska. Studying permafrost in the Arctic seafloor can improve our understanding of global climate change. Credit Photo courtesy Sandia National Laboratories Usage Restrictions News and non-commercial reuse with credit 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.