Robot Sub Finds Surprisingly Thick Antarctic Sea Ice
by Becky Oskin, Senior Writer | November 24, 2014
Pin It Different thicknesses of sea ice in Antarctica’s Bellingshausen Sea. Open water is dark black; older sea ice has a covering of bright white snow, and thick ice is grey.
Antarctica’s ice paradox has yet another puzzling layer. Not only is the amount of sea ice increasing each year, but an underwater robot now shows the ice is also much thicker than was previously thought, a new study reports.
The discovery adds to the ongoing mystery of Antarctica’s expanding sea ice. According to climate models, the region’s sea ice should be shrinking each year because of global warming. Instead, satellite observations show the ice is expanding, and the continent’s sea ice has set new records for the past three winters.