Why is this infamous iceberg turning blue?

Environment Climate Change Global Warming Why is this infamous iceberg turning blue? Iceberg A-23A is bigger than New York City, but its days are numbered. Breakthroughs, discoveries, and DIY tips sent every weekday. Iceberg A-23A is looking a little blue these days. In late December 2025, NASA and NOAA's Terra satellite spotted the massive iceberg covered with blue meltwater .