The ‘Doomsday Glacier’ Could Flood the Earth. Can a 50-Mile Wall Stop It?

Scientists are exploring geoengineering options, such as a 50-mile wall to stop the Thwaites Glacier from melting, as traditional decarbonization efforts are not progressing quickly enough. While some scientists believe these interventions could be necessary to mitigate sea-level rise, others argue they are too costly, technically challenging, and a distraction from reducing fossil fuel use.