EARTH - New research sheds light on history of polar current

Research conducted by a team that included scientists from British Antarctic Survey reveals the ocean current moving around the South Pole flowed at much the same speed in the last ice age as it has done in much more recent times. The study suggests there was unlikely to have been very strong changes in the wind speed either. The findings will help scientists model past climates with greater accuracy ...

http://phys.org/news/2013-12-history-polar-current.htm