Answer. Air bubbles in ice trap whatever was in the air at the time the ice froze. By looking at ice core samples, we can tell what the atmosphere was like ... wiki.answers.com |
13 Apr 2005 ... Ice cores contain an abundance of climate information --more so than any other natural recorder of climate such as tree rings or sediment ... nicl.usgs.gov |
10 Jun 2011 ... As a scientist who is using ice core data to study climate change, ... This provides an important baseline for understanding our current CO2 ... www.guardian.co.uk |