KPIX CBS Evening News With Scott Pelley March 5, 2016 01:47:00
Out on boats and cruise around to measure these things are absolutely stunned. >> reporter: robert newton is an arctic researcher at columbia university. >> its the dead of winter there. theres no light. its well below freezing. it should be locked in with ice all the way across, but the ice is significantly retreated, even in wintertime. >> reporter: the shrinking sea ice could have a potentially disastrous effect on animals, such as polar bears and seals, who depend on the ice to hunt and bree...
Source: archive.org