Clues in seafloor sediments reveal that relatively warm water beneath western Antarctic ice shelves, a major factor in today's massive ice sheet retreat, also fueled some past ice loss.
Sarah Derouin
Sarah Derouin is a freelance science journalist and editor who has been writing for Eos since 2017. She has a doctorate in geology from the University of Cincinnati and is a graduate of the Science Communication Program at University of California, Santa Cruz. Sarah has written for New Scientist, Scientific American, Popular Mechanics, Science, EARTH Magazine, and Mongabay. She was the 2018–19 Science Communication Fellow for the Geological Society of America and attended Congressional Climate Science Days. Beyond writing, Sarah was an acting associate editor for EARTH Magazine. She also worked behind the scenes as an assistant producer on Big Picture Science radio show, broadcast on more than 140 public radio stations. You can find more of her work at www.sarahderouin.com or connect with her on Twitter @Sarah_Derouin.