Deep freeze divers brave Antarctica to seek out life in sub-zero seas

Sean Thomas' Antarctic blog: https://rt.com/news/blogs/stories-bottom-planet/ <br /><br />It takes a certain kind of stamina to plunge into an icy ocean, but it is all in a day's work for the determined divers of Antarctica. RT's Sean Thomas meets those who keep their cool in the name of science.<br /><br />RT on Facebook: http://www.facebook.com/RTnews <br />RT on Twitter: http://twitter.com/RT_com