Antarctic ice core research at USGS National Ice Core Lab

Ars Technica's Scott Johnson visited the USGS National Ice Core Lab in Colorado and talked to researchers studying deep ice cores from Antarctica to find clues to climate change patterns up to 50,000 years ago.
Read the article: http://arstechnica.com/science/2016/08/from-the-south-pole-to-the-science-section-how-ice-becomes-knowledge/