Doomsday Glacier Is ‘Holding on… by Its Fingernails’
An Antarctic iceberg at sunset.Photo: Sergio Pitamitz / VWPics (AP)The Thwaites Glacier, one of the most unstable parts of Antarctica’s ice sheet, could be gearing up for even more rapid changes than we previously thought. In a study published this week in Nature Geoscience, a team of researchers have published new images of the ocean’s floor that they say provide valuable information about how the glacier may have retreated during past warm periods. The insights could give a scary warning about the future of sea level…