AIR & SPACE MAGAZINE Undercutting Currents ICESat shows how warm ocean water is melting Antarctica from below. NASA / Goddard CGI Lab April 26, 2012 NASA / Goddard CGI Lab Get the latest stories in your inbox every weekday. Recommended Videos
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/2012_0426_iceloss.jpg)