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- Biello, David. "Rise and Fall of Chinese Dynasties Tied to Changes in Rainfall." Scientific American. Nov. 7, 2008.http://www.sciam.com/article.cfm?id=monsoon-climate-change-chinese
- Joyce, Christopher. "With Climate Swing, a Culture Bloomed in Americas." All Things Considered. NPR.org. Feb. 11, 2008.http://www.npr.org/templates/story/story.php?storyId=18888119
- Lovgren, Stefan. "Climate Change Killed off Maya Civilization, Study Says." National Geographic News. March 13, 2003.http://news.nationalgeographic.com/news/2003/03/0313_030313_mayadrought.html
- "Archaeologists Shed New Light On Americas' Earliest Known Civilization." ScienceDaily. Jan. 4, 2005.http://www.sciencedaily.com/releases/2005/01/050104112957.htm