U.S. National Ice Core Laboratory Home site for the U.S. National Ice Core Laboratory at the U.S. Geological Survey in Denver, Colorado, USA. nicl.usgs.gov/reviews
GISP2 Home Page With the completion of the GISP2 drilling program and a companion European ice coring effort, a new era in paleoenvironmental investigation has been opened. www.gisp2.sr.unh.edu/GISP2/reviews