Scientists studying Antarctica’s vast Thwaites Glacier – nicknamed the “Doomsday Glacier” – say warm water is seeping into its weak spots, threatening its demise and a massive sea rise. As part of the International Thwaites Glacier Collaboration – the biggest field campaign ever attempted in Antarctica – a team of 13 scientists from the United States and United Kingdom spent about six weeks on the glacier in late 2019 and early 2020. ”Ted Scambos of the National Snow and Ice Data Center, who was not part of the studies, said the results add to the understanding of how Thwaites is diminishing