HEALTH COLUMN | King: Drought is damaging our planet
The advanced, industrial Anasazi culture of the southwestern United States reached its zenith between 1050 and 1125 A.D., before experiencing a dramatic collapse. No written record exists that explains this phenomenon. Climatic evidence, however, points to significant weather changes, such as the Great Drought.
The Southwest is once again experiencing a Great Drought; evidence from dendrochronology, the science that studies tree rings, shows that 2002 was the driest year since 1685. But the Great Droughts of antiquity were triggered by naturally occurring climate shifts of...