Tree rings tell of Angkor's dying days

Post-meeting report from the workshop "Climate Variability in the Greater Mekong River Basin: paleo proxies, instrumental data, historical records and model projections". Archaeologists have long puzzled over the collapse of the mighty medieval Khmer kingdom in Southeast Asia best known for its resplendent capital, Angkor. New findings suggest that a decades-long drought at about the time the kingdom began fading away in the 14th century may have been a major culprit.