#3. Mexico Floods

A natural disaster in a rich country like the United States can be an inconvenience. In an impoverished nation like Mexico, it is a human catastrophe. Massive floods that struck the southern Mexican states of Tabasco and Chiapas in late October and November left vast stretches of land completely submerged — an estimated 80% of Tabasco was under water at one point, and as many as one million residents were affected by the floods. Mexican President Felipe Calderon put it simply: "This is one of the worst natural disasters in the history of the country."