The main cause of the greatest loss of life from Hurricane Katrina was levee failures due to the storm surge, highlighting the importance of understanding the impact of human decisions on natural disasters.
The greatest loss of life from Hurricane Katrina was the result of levee failures caused by the hurricane's storm surge. The storm surge is a hill of water that forms on the ocean surface below a hurricane, leading to extensive flooding upon landfall. As highlighted by various sources, including McCarthy and King (2009), human decisions and failures in levee infrastructure significantly contributed to the catastrophic impact on New Orleans.
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