Referenced in the Following News Items:
- Amid a Fossil Bonanza, Drilling Deep into Pre-Dinosaurian Rocks
- Mongol Empire Rode Wave of Mild Climate, Says Study
- Climate and Conquest: How Did Genghis Khan Rise?
- Key Talks from the American Geophysical Union's Annual Meeting
- American Geophysical Union Dec. 3-7: Key Talks From the Earth Institute
- Signals of Past Say Big Droughts Can Hit U.S. East