Climate Change: Antarctic Ice Reveals 68,000 Years Of History, Hints At Oceans' Role In Temperature Change

Climate Change: Antarctic Ice Reveals 68,000 Years Of History, Hints At Oceans' Role In Temperature Change,
By Philip Ross,
April 30, 2015,
International Business Times,

Ice cores pulled from miles below Antarctica's surface are revealing new evidence of ancient links between the climates of Earth's Northern and Southern hemispheres. A cylinder of ice drilled from a depth of more than 11,100 feet has allowed scientists to document 68,000 years of climate history, including a consistent, 200-year lag between climate events in the North Atlantic and those in Antarctica, says a study published Thursday in the journal Nature. Understanding how heat and cold moved between the two poles is key to understanding future climate change, researchers said.