Earth might seem like a more active and dangerous place than ever, given the constant media reports of multiple natural disasters recently.
But a broader view reveals that it's not Mother Nature who's changed, but we humans.
Government officials are evaluating and revising disaster plans around the United States in the wake of Hurricane Katrina, just as they did after the Sept. 11 terrorist attacks. While war and automobiles kill more people than nature, find out what natural disasters top scientists' worry lists.
_10. Banqiao Dam Flood (1975). Death Toll: 90,000-230,000.
The Banqiao Reservoir Dam and Shimantan Reservoir Dam are among 62 dams in Zhumadian Prefecture of China's Henan Province that failed catastrophically or were intentionally destroyed in 1975 during Typhoon Nina...