Twin ice cores from Greenland reveal history of climate change, more

• Main Authors: Alley, R., Mayewski, P., Peel, D., Stauffer, B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 1996
• Subjects: 530 Physics; Greenland; Ice Sheet
• Online Access: https://boris.unibe.ch/158842/1/alley96eos.pdf; https://boris.unibe.ch/158842/

Two projects conducted from 1989 to 1993 collected parallel ice cores—just 30 km apart— from the central part of the Greenland ice sheet. Each core is more than 3 km deep and extends back 110,000 years. In short, the ice cores tell a clear story: humans came of age agriculturally and industrially during the most stable climatic regime recorded in the cores. Change—large, rapid, and global—is more characteristic of the Earth's climate than is stasis.