Antarctic sea ice grows by 17 million square kilometers in 2024 but remains second lowest in 46 years

Antarctic sea ice grew by over 17 million square kilometers in 2024, reaching a maximum extent of 17.16 million square kilometers on September 19. This is the second lowest level recorded in 46 years, following the lowest in 2023. The National Snow and Ice Data Center reported that the growth is still concerning, as it reflects ongoing impacts from a warming ocean. Preliminary data suggests significant changes in Antarctic ice conditions over the past two years. A full analysis of the data will be released later this month. Scientists continue to monitor the Thwaites Glacier, which is melting rapidly and could collapse in the coming centuries, potentially raising global sea levels significantly.