Top 10 Natural Disasters

#1. Bangladesh Cyclones

The sheer population density of Bangladesh — 2,639 people per square mile — guarantees that any natural disaster in that South Asian nation will take a severe human toll. When Cyclone Sidr struck southern Bangladesh on Nov. 15, it was no different. Packing winds of over 100 mph, the storm took out power lines and trees, and pulverized mud-and-thatch homes. The death toll was over 1,000, with more than half a million people forced to flee their homes. But by Bangladesh's sad standards, Sidr was nothing — a cyclone in 1991 killed an astounding 140,000 people.

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