What destroyed the Maya? We have a new clue, in the form of an ancient stalagmite.

The Maya civilization was among the most advanced in history, and its disintegration has perplexed researchers for ages. One of the most compelling theories to date suggests that a shifting climate, playing puppeteer to sociopolitical marionettes, had a devastating role in the Maya's downfall. Now, researchers have… »11/08/12 6:20pm